Developing a Thesis Statement

Many papers you write require developing a thesis statement. In this section you’ll learn what a thesis statement is and how to write one.

Keep in mind that not all papers require thesis statements . If in doubt, please consult your instructor for assistance.

What is a thesis statement?

A thesis statement . . .

  • Makes an argumentative assertion about a topic; it states the conclusions that you have reached about your topic.
  • Makes a promise to the reader about the scope, purpose, and direction of your paper.
  • Is focused and specific enough to be “proven” within the boundaries of your paper.
  • Is generally located near the end of the introduction ; sometimes, in a long paper, the thesis will be expressed in several sentences or in an entire paragraph.
  • Identifies the relationships between the pieces of evidence that you are using to support your argument.

Not all papers require thesis statements! Ask your instructor if you’re in doubt whether you need one.

Identify a topic

Your topic is the subject about which you will write. Your assignment may suggest several ways of looking at a topic; or it may name a fairly general concept that you will explore or analyze in your paper.

Consider what your assignment asks you to do

Inform yourself about your topic, focus on one aspect of your topic, ask yourself whether your topic is worthy of your efforts, generate a topic from an assignment.

Below are some possible topics based on sample assignments.

Sample assignment 1

Analyze Spain’s neutrality in World War II.

Identified topic

Franco’s role in the diplomatic relationships between the Allies and the Axis

This topic avoids generalities such as “Spain” and “World War II,” addressing instead on Franco’s role (a specific aspect of “Spain”) and the diplomatic relations between the Allies and Axis (a specific aspect of World War II).

Sample assignment 2

Analyze one of Homer’s epic similes in the Iliad.

The relationship between the portrayal of warfare and the epic simile about Simoisius at 4.547-64.

This topic focuses on a single simile and relates it to a single aspect of the Iliad ( warfare being a major theme in that work).

Developing a Thesis Statement–Additional information

Your assignment may suggest several ways of looking at a topic, or it may name a fairly general concept that you will explore or analyze in your paper. You’ll want to read your assignment carefully, looking for key terms that you can use to focus your topic.

Sample assignment: Analyze Spain’s neutrality in World War II Key terms: analyze, Spain’s neutrality, World War II

After you’ve identified the key words in your topic, the next step is to read about them in several sources, or generate as much information as possible through an analysis of your topic. Obviously, the more material or knowledge you have, the more possibilities will be available for a strong argument. For the sample assignment above, you’ll want to look at books and articles on World War II in general, and Spain’s neutrality in particular.

As you consider your options, you must decide to focus on one aspect of your topic. This means that you cannot include everything you’ve learned about your topic, nor should you go off in several directions. If you end up covering too many different aspects of a topic, your paper will sprawl and be unconvincing in its argument, and it most likely will not fulfull the assignment requirements.

For the sample assignment above, both Spain’s neutrality and World War II are topics far too broad to explore in a paper. You may instead decide to focus on Franco’s role in the diplomatic relationships between the Allies and the Axis , which narrows down what aspects of Spain’s neutrality and World War II you want to discuss, as well as establishes a specific link between those two aspects.

Before you go too far, however, ask yourself whether your topic is worthy of your efforts. Try to avoid topics that already have too much written about them (i.e., “eating disorders and body image among adolescent women”) or that simply are not important (i.e. “why I like ice cream”). These topics may lead to a thesis that is either dry fact or a weird claim that cannot be supported. A good thesis falls somewhere between the two extremes. To arrive at this point, ask yourself what is new, interesting, contestable, or controversial about your topic.

As you work on your thesis, remember to keep the rest of your paper in mind at all times . Sometimes your thesis needs to evolve as you develop new insights, find new evidence, or take a different approach to your topic.

Derive a main point from topic

Once you have a topic, you will have to decide what the main point of your paper will be. This point, the “controlling idea,” becomes the core of your argument (thesis statement) and it is the unifying idea to which you will relate all your sub-theses. You can then turn this “controlling idea” into a purpose statement about what you intend to do in your paper.

Look for patterns in your evidence

Compose a purpose statement.

Consult the examples below for suggestions on how to look for patterns in your evidence and construct a purpose statement.

  • Franco first tried to negotiate with the Axis
  • Franco turned to the Allies when he couldn’t get some concessions that he wanted from the Axis

Possible conclusion:

Spain’s neutrality in WWII occurred for an entirely personal reason: Franco’s desire to preserve his own (and Spain’s) power.

Purpose statement

This paper will analyze Franco’s diplomacy during World War II to see how it contributed to Spain’s neutrality.
  • The simile compares Simoisius to a tree, which is a peaceful, natural image.
  • The tree in the simile is chopped down to make wheels for a chariot, which is an object used in warfare.

At first, the simile seems to take the reader away from the world of warfare, but we end up back in that world by the end.

This paper will analyze the way the simile about Simoisius at 4.547-64 moves in and out of the world of warfare.

Derive purpose statement from topic

To find out what your “controlling idea” is, you have to examine and evaluate your evidence . As you consider your evidence, you may notice patterns emerging, data repeated in more than one source, or facts that favor one view more than another. These patterns or data may then lead you to some conclusions about your topic and suggest that you can successfully argue for one idea better than another.

For instance, you might find out that Franco first tried to negotiate with the Axis, but when he couldn’t get some concessions that he wanted from them, he turned to the Allies. As you read more about Franco’s decisions, you may conclude that Spain’s neutrality in WWII occurred for an entirely personal reason: his desire to preserve his own (and Spain’s) power. Based on this conclusion, you can then write a trial thesis statement to help you decide what material belongs in your paper.

Sometimes you won’t be able to find a focus or identify your “spin” or specific argument immediately. Like some writers, you might begin with a purpose statement just to get yourself going. A purpose statement is one or more sentences that announce your topic and indicate the structure of the paper but do not state the conclusions you have drawn . Thus, you might begin with something like this:

  • This paper will look at modern language to see if it reflects male dominance or female oppression.
  • I plan to analyze anger and derision in offensive language to see if they represent a challenge of society’s authority.

At some point, you can turn a purpose statement into a thesis statement. As you think and write about your topic, you can restrict, clarify, and refine your argument, crafting your thesis statement to reflect your thinking.

As you work on your thesis, remember to keep the rest of your paper in mind at all times. Sometimes your thesis needs to evolve as you develop new insights, find new evidence, or take a different approach to your topic.

Compose a draft thesis statement

If you are writing a paper that will have an argumentative thesis and are having trouble getting started, the techniques in the table below may help you develop a temporary or “working” thesis statement.

Begin with a purpose statement that you will later turn into a thesis statement.

Assignment: Discuss the history of the Reform Party and explain its influence on the 1990 presidential and Congressional election.

Purpose Statement: This paper briefly sketches the history of the grassroots, conservative, Perot-led Reform Party and analyzes how it influenced the economic and social ideologies of the two mainstream parties.

Question-to-Assertion

If your assignment asks a specific question(s), turn the question(s) into an assertion and give reasons why it is true or reasons for your opinion.

Assignment : What do Aylmer and Rappaccini have to be proud of? Why aren’t they satisfied with these things? How does pride, as demonstrated in “The Birthmark” and “Rappaccini’s Daughter,” lead to unexpected problems?

Beginning thesis statement: Alymer and Rappaccinni are proud of their great knowledge; however, they are also very greedy and are driven to use their knowledge to alter some aspect of nature as a test of their ability. Evil results when they try to “play God.”

Write a sentence that summarizes the main idea of the essay you plan to write.

Main idea: The reason some toys succeed in the market is that they appeal to the consumers’ sense of the ridiculous and their basic desire to laugh at themselves.

Make a list of the ideas that you want to include; consider the ideas and try to group them.

  • nature = peaceful
  • war matériel = violent (competes with 1?)
  • need for time and space to mourn the dead
  • war is inescapable (competes with 3?)

Use a formula to arrive at a working thesis statement (you will revise this later).

  • although most readers of _______ have argued that _______, closer examination shows that _______.
  • _______ uses _______ and _____ to prove that ________.
  • phenomenon x is a result of the combination of __________, __________, and _________.

What to keep in mind as you draft an initial thesis statement

Beginning statements obtained through the methods illustrated above can serve as a framework for planning or drafting your paper, but remember they’re not yet the specific, argumentative thesis you want for the final version of your paper. In fact, in its first stages, a thesis statement usually is ill-formed or rough and serves only as a planning tool.

As you write, you may discover evidence that does not fit your temporary or “working” thesis. Or you may reach deeper insights about your topic as you do more research, and you will find that your thesis statement has to be more complicated to match the evidence that you want to use.

You must be willing to reject or omit some evidence in order to keep your paper cohesive and your reader focused. Or you may have to revise your thesis to match the evidence and insights that you want to discuss. Read your draft carefully, noting the conclusions you have drawn and the major ideas which support or prove those conclusions. These will be the elements of your final thesis statement.

Sometimes you will not be able to identify these elements in your early drafts, but as you consider how your argument is developing and how your evidence supports your main idea, ask yourself, “ What is the main point that I want to prove/discuss? ” and “ How will I convince the reader that this is true? ” When you can answer these questions, then you can begin to refine the thesis statement.

Refine and polish the thesis statement

To get to your final thesis, you’ll need to refine your draft thesis so that it’s specific and arguable.

  • Ask if your draft thesis addresses the assignment
  • Question each part of your draft thesis
  • Clarify vague phrases and assertions
  • Investigate alternatives to your draft thesis

Consult the example below for suggestions on how to refine your draft thesis statement.

Sample Assignment

Choose an activity and define it as a symbol of American culture. Your essay should cause the reader to think critically about the society which produces and enjoys that activity.

  • Ask The phenomenon of drive-in facilities is an interesting symbol of american culture, and these facilities demonstrate significant characteristics of our society.This statement does not fulfill the assignment because it does not require the reader to think critically about society.
Drive-ins are an interesting symbol of American culture because they represent Americans’ significant creativity and business ingenuity.
Among the types of drive-in facilities familiar during the twentieth century, drive-in movie theaters best represent American creativity, not merely because they were the forerunner of later drive-ins and drive-throughs, but because of their impact on our culture: they changed our relationship to the automobile, changed the way people experienced movies, and changed movie-going into a family activity.
While drive-in facilities such as those at fast-food establishments, banks, pharmacies, and dry cleaners symbolize America’s economic ingenuity, they also have affected our personal standards.
While drive-in facilities such as those at fast- food restaurants, banks, pharmacies, and dry cleaners symbolize (1) Americans’ business ingenuity, they also have contributed (2) to an increasing homogenization of our culture, (3) a willingness to depersonalize relationships with others, and (4) a tendency to sacrifice quality for convenience.

This statement is now specific and fulfills all parts of the assignment. This version, like any good thesis, is not self-evident; its points, 1-4, will have to be proven with evidence in the body of the paper. The numbers in this statement indicate the order in which the points will be presented. Depending on the length of the paper, there could be one paragraph for each numbered item or there could be blocks of paragraph for even pages for each one.

Complete the final thesis statement

The bottom line.

As you move through the process of crafting a thesis, you’ll need to remember four things:

  • Context matters! Think about your course materials and lectures. Try to relate your thesis to the ideas your instructor is discussing.
  • As you go through the process described in this section, always keep your assignment in mind . You will be more successful when your thesis (and paper) responds to the assignment than if it argues a semi-related idea.
  • Your thesis statement should be precise, focused, and contestable ; it should predict the sub-theses or blocks of information that you will use to prove your argument.
  • Make sure that you keep the rest of your paper in mind at all times. Change your thesis as your paper evolves, because you do not want your thesis to promise more than your paper actually delivers.

In the beginning, the thesis statement was a tool to help you sharpen your focus, limit material and establish the paper’s purpose. When your paper is finished, however, the thesis statement becomes a tool for your reader. It tells the reader what you have learned about your topic and what evidence led you to your conclusion. It keeps the reader on track–well able to understand and appreciate your argument.

evidence to support a thesis

Writing Process and Structure

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Getting Started with Your Paper

Interpreting Writing Assignments from Your Courses

Generating Ideas for

Creating an Argument

Thesis vs. Purpose Statements

Architecture of Arguments

Working with Sources

Quoting and Paraphrasing Sources

Using Literary Quotations

Citing Sources in Your Paper

Drafting Your Paper

Generating Ideas for Your Paper

Introductions

Paragraphing

Developing Strategic Transitions

Conclusions

Revising Your Paper

Peer Reviews

Reverse Outlines

Revising an Argumentative Paper

Revision Strategies for Longer Projects

Finishing Your Paper

Twelve Common Errors: An Editing Checklist

How to Proofread your Paper

Writing Collaboratively

Collaborative and Group Writing

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Using evidence.

Like a lawyer in a jury trial, a writer must convince her audience of the validity of her argument by using evidence effectively. As a writer, you must also use evidence to persuade your readers to accept your claims. But how do you use evidence to your advantage? By leading your reader through your reasoning.

The types of evidence you use change from discipline to discipline--you might use quotations from a poem or a literary critic, for example, in a literature paper; you might use data from an experiment in a lab report.

The process of putting together your argument is called analysis --it interprets evidence in order to support, test, and/or refine a claim . The chief claim in an analytical essay is called the thesis . A thesis provides the controlling idea for a paper and should be original (that is, not completely obvious), assertive, and arguable. A strong thesis also requires solid evidence to support and develop it because without evidence, a claim is merely an unsubstantiated idea or opinion.

This Web page will cover these basic issues (you can click or scroll down to a particular topic):

  • Incorporating evidence effectively.
  • Integrating quotations smoothly.
  • Citing your sources.

Incorporating Evidence Into Your Essay

When should you incorporate evidence.

Once you have formulated your claim, your thesis (see the WTS pamphlet, " How to Write a Thesis Statement ," for ideas and tips), you should use evidence to help strengthen your thesis and any assertion you make that relates to your thesis. Here are some ways to work evidence into your writing:

  • Offer evidence that agrees with your stance up to a point, then add to it with ideas of your own.
  • Present evidence that contradicts your stance, and then argue against (refute) that evidence and therefore strengthen your position.
  • Use sources against each other, as if they were experts on a panel discussing your proposition.
  • Use quotations to support your assertion, not merely to state or restate your claim.

Weak and Strong Uses of Evidence

In order to use evidence effectively, you need to integrate it smoothly into your essay by following this pattern:

  • State your claim.
  • Give your evidence, remembering to relate it to the claim.
  • Comment on the evidence to show how it supports the claim.

To see the differences between strong and weak uses of evidence, here are two paragraphs.

Weak use of evidence
Today, we are too self-centered. Most families no longer sit down to eat together, preferring instead to eat on the go while rushing to the next appointment (Gleick 148). Everything is about what we want.

This is a weak example of evidence because the evidence is not related to the claim. What does the claim about self-centeredness have to do with families eating together? The writer doesn't explain the connection.

The same evidence can be used to support the same claim, but only with the addition of a clear connection between claim and evidence, and some analysis of the evidence cited.

Stronger use of evidence
Today, Americans are too self-centered. Even our families don't matter as much anymore as they once did. Other people and activities take precedence. In fact, the evidence shows that most American families no longer eat together, preferring instead to eat on the go while rushing to the next appointment (Gleick 148). Sit-down meals are a time to share and connect with others; however, that connection has become less valued, as families begin to prize individual activities over shared time, promoting self-centeredness over group identity.

This is a far better example, as the evidence is more smoothly integrated into the text, the link between the claim and the evidence is strengthened, and the evidence itself is analyzed to provide support for the claim.

Using Quotations: A Special Type of Evidence

One effective way to support your claim is to use quotations. However, because quotations involve someone else's words, you need to take special care to integrate this kind of evidence into your essay. Here are two examples using quotations, one less effective and one more so.

Ineffective Use of Quotation
Today, we are too self-centered. "We are consumers-on-the-run . . . the very notion of the family meal as a sit-down occasion is vanishing. Adults and children alike eat . . . on the way to their next activity" (Gleick 148). Everything is about what we want.

This example is ineffective because the quotation is not integrated with the writer's ideas. Notice how the writer has dropped the quotation into the paragraph without making any connection between it and the claim. Furthermore, she has not discussed the quotation's significance, which makes it difficult for the reader to see the relationship between the evidence and the writer's point.

A More Effective Use of Quotation
Today, Americans are too self-centered. Even our families don't matter as much any more as they once did. Other people and activities take precedence, as James Gleick says in his book, Faster . "We are consumers-on-the-run . . . the very notion of the family meal as a sit-down occasion is vanishing. Adults and children alike eat . . . on the way to their next activity" (148). Sit-down meals are a time to share and connect with others; however, that connection has become less valued, as families begin to prize individual activities over shared time, promoting self-centeredness over group identity.

The second example is more effective because it follows the guidelines for incorporating evidence into an essay. Notice, too, that it uses a lead-in phrase (". . . as James Gleick says in his book, Faster ") to introduce the direct quotation. This lead-in phrase helps to integrate the quotation with the writer's ideas. Also notice that the writer discusses and comments upon the quotation immediately afterwards, which allows the reader to see the quotation's connection to the writer's point.

REMEMBER: Discussing the significance of your evidence develops and expands your paper!

Citing Your Sources

Evidence appears in essays in the form of quotations and paraphrasing. Both forms of evidence must be cited in your text. Citing evidence means distinguishing other writers' information from your own ideas and giving credit to your sources. There are plenty of general ways to do citations. Note both the lead-in phrases and the punctuation (except the brackets) in the following examples:

Quoting: According to Source X, "[direct quotation]" ([date or page #]).
Paraphrasing: Although Source Z argues that [his/her point in your own words], a better way to view the issue is [your own point] ([citation]).
Summarizing: In her book, Source P's main points are Q, R, and S [citation].

Your job during the course of your essay is to persuade your readers that your claims are feasible and are the most effective way of interpreting the evidence.

Questions to Ask Yourself When Revising Your Paper

  • Have I offered my reader evidence to substantiate each assertion I make in my paper?
  • Do I thoroughly explain why/how my evidence backs up my ideas?
  • Do I avoid generalizing in my paper by specifically explaining how my evidence is representative?
  • Do I provide evidence that not only confirms but also qualifies my paper's main claims?
  • Do I use evidence to test and evolve my ideas, rather than to just confirm them?
  • Do I cite my sources thoroughly and correctly?

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While Sandel argues that pursuing perfection through genetic engineering would decrease our sense of humility, he claims that the sense of solidarity we would lose is also important.

This thesis summarizes several points in Sandel’s argument, but it does not make a claim about how we should understand his argument. A reader who read Sandel’s argument would not also need to read an essay based on this descriptive thesis.  

Broad thesis (arguable, but difficult to support with evidence) 

Michael Sandel’s arguments about genetic engineering do not take into consideration all the relevant issues.

This is an arguable claim because it would be possible to argue against it by saying that Michael Sandel’s arguments do take all of the relevant issues into consideration. But the claim is too broad. Because the thesis does not specify which “issues” it is focused on—or why it matters if they are considered—readers won’t know what the rest of the essay will argue, and the writer won’t know what to focus on. If there is a particular issue that Sandel does not address, then a more specific version of the thesis would include that issue—hand an explanation of why it is important.  

Arguable thesis with analytical claim 

While Sandel argues persuasively that our instinct to “remake” (54) ourselves into something ever more perfect is a problem, his belief that we can always draw a line between what is medically necessary and what makes us simply “better than well” (51) is less convincing.

This is an arguable analytical claim. To argue for this claim, the essay writer will need to show how evidence from the article itself points to this interpretation. It’s also a reasonable scope for a thesis because it can be supported with evidence available in the text and is neither too broad nor too narrow.  

Arguable thesis with normative claim 

Given Sandel’s argument against genetic enhancement, we should not allow parents to decide on using Human Growth Hormone for their children.

This thesis tells us what we should do about a particular issue discussed in Sandel’s article, but it does not tell us how we should understand Sandel’s argument.  

Questions to ask about your thesis 

  • Is the thesis truly arguable? Does it speak to a genuine dilemma in the source, or would most readers automatically agree with it?  
  • Is the thesis too obvious? Again, would most or all readers agree with it without needing to see your argument?  
  • Is the thesis complex enough to require a whole essay's worth of argument?  
  • Is the thesis supportable with evidence from the text rather than with generalizations or outside research?  
  • Would anyone want to read a paper in which this thesis was developed? That is, can you explain what this paper is adding to our understanding of a problem, question, or topic?
  • picture_as_pdf Thesis

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  • Proving the Thesis - General Principles
  • The Writing Process
  • Paragraphs and Essays
  • Unity and Coherence in Essays
  • Proving the Thesis - Logic
  • Proving the Thesis - Logical Fallacies and Appeals
  • Proving the Thesis - Rhetorical Mode
  • Appropriate Language

Related Pages

  • Writing Process

Stay Focused on Purpose

It is critical to keep focused on the purpose of your writing: to prove the thesis.  If you are planning an essay, start with at least a scratch outline and a working thesis – a starting thesis that you know you might change as you draft your paper.  If you are writing an essay exam or paper, be sure to identify the key terms in the instructions such as the following and don’t stray from the topic and/or question or what the instructions say to do: analyze, clarify, classify, compare, contrast, define, describe, discuss, evaluate, explain, identify, illustrate, interpret, justify, relate, summarize, support, or trace.  Remember to review and revise. See Writiing Process and Outlining in Related Pages on the right sidebar.

Relevance, Reliability, Accuracy, and Sufficiency

The information presented to prove the thesis should be relevant, reliable, credible, and sufficient.

  • relevant evidence  – evidence must be directly and clearly related to proving the thesis
  • reliable evidence  – evidence must be consistent and accurate; the same circumstances must have the same result
  • reliable narrator  –  there is general presumption in sources that are purportedly factual is that the writer is reliable; however, that it is not necessarily accurate that the writer is presenting consistent or even accurate information even when that writer thinks he or she is.  The term  reliable narrator  is used more frequently in literary analysis to describe that the person telling the story can be trusted to be giving reliable information.
  • unreliable narrator  – an unreliable narrator is where when the person writing the source is not consistent or accurate. The term  reliable narrator  is used more frequently in literary analysis to describe that the person telling the story cannot be trusted to be giving reliable information.
  • accurate evidence  –  for evidence to be credible, it must be factual.  Even one inaccurate piece of information will cause the reader to doubt an author’s credibility.
  • sufficient evidence  – evidence must be sufficient.  Sufficiency is a question of whether even though the evidence used to prove the thesis may be reliable and accurate, it may not be enough to prove the thesis
  • representative evidence  – a consideration related to relevance, reliability, credibility, and sufficiency is whether the evidence represents the entire group involved in the analysis.  For example, evidence which is relevant, reliable, accurate, and sufficient that shows a high correlation of pesticide content in certain foods may not have been drawn from samples from all over the country, so the incidence may be limited only to the area from which the sample was drawn

Transitional Devices

A good paper must have  coherence . This means that all the ideas should be in a logical order and fit together like links in a chain.  One way to do this is to have an overall plan for how the paper will develop, such as in an outline. Another is to use transitional devices.

Transitional devices are a word or words that help one sentence or paragraph flow into the next. Here is an example of two sentences which do not have any transitional information to connect them:

The weather looked threatening. They went on their picnic.

In the above example, we are unsure how these two ideas relate to each other.  See how one word connects the two thoughts in the following example:

The weather looked threatening. Nevertheless, they went on their picnic.

Now we understand the relationship between the ideas. The word  Nevertheless  serves as a transitional device from one sentence to the next.

Transitional devices can be more than just a word. They can also be entire phrases. Here is an example of a sentence with a phrase that serves as a transitional device.

In spite of the cloudy sky, they went on their picnic.

The words  In spite of the cloudy sky  are a transitional device.

Just as there should be transitions between sentences, paragraphs should also link together. There are a few ways to do this.

  • Refer to key words or thoughts from the thesis.
  • Refer to key words or ideas from the preceding paragraph.
  • Use transitional expressions.
  • Use transitional sentences.

Using transitions in your paper is like using signals when you drive. Imagine following someone in a car who is leading you to a place you’ve never been before. Think about how difficult it would be to follow him to the correct destination if he didn’t signal! Just as in driving, you don’t want to take a turn in your paper and risk leaving your readers behind.

Facts and Statistics

Facts and statistics can be very persuasive.  In fact, a critical reader will challenge the accuracy or the legitimacy of the sources for purported facts and statistics.

It is important to investigate those ourselves before we use information that is supposed to be factual.  We should know exactly where the information comes from and evaluate whether the source is credible.  It is not a good idea to present information as though it is a fact unless you know it is a fact.

Statistics can be manipulated.  An educated audience will pick that up and you’ll lose credibility if they sense that the presentation of statistics is not honest.

Here’s an example:

A board president claimed that ninety percent of the people who responded to a survey wanted a certain action taken.  When asked how many responded to the survey, he answered that ten people had responded.

Primary and Secondary Sources

A  primary source  is a source written by the person providing the information.  If you get information from your friend, the friend is the primary source.

In research, it is preferable to get information directly from the source when it is available.

Secondary sources  are not directly from the provider of the information.  It is like getting information about what Joan said from John.  This information is not as reliable as primary sources.  However, it is common practice for authors to include what others have said in their articles and analyze what was said.

Pictures, charts, graphs, drawings, and diagrams; not appropriate in writing for all courses – check with instructor if not indicated on assignment

Rhetorical Modes as Types of Proof

Narration is the use of language to tell a story. It is the telling of a sequence of events or occurrences.  As a method of helping to prove a thesis, narration might be used tell the experience of the author or of someone else.  For example, in a paper discussing allergies, a writer might narrate his or her experiences with allergies and what was done to control exposure to the allergens or treat the symptoms.

It is important, especially when dealing with a complex topic, that you define all the key terms in your argument. This is important because not all definitions are universally agreed upon. Take the idea of immigration reform. For some this could mean providing a path to citizenship for illegal immigrants; for others, it could mean tighter border security.

How you define something influences how you and your audience see a particular issue.  Even the terms used to describe an issue can influence the reader. Take for example the difference in calling someone an “illegal immigrant” versus an “undocumented worker.”

Using the first entry in a standard dictionary is not usually sufficient, especially when writing about something very technical. Some areas have specialized dictionaries to define specific terms. The word  gross is  used very differently if used in everyday language or by a medical clinician.  In everyday language, the word  gross  means awful or disgusting.  However, in medical language the word gross means large.

Be careful not to use vague or judgmental words in your definition as it can seem to your readers that you are biased or imprecise.

Division and Classification

With complicated topics, it might helpful to separate the bigger topic or subject area into smaller parts and classify the information according to separate criteria.  For example, in discussing plants, it could help to discuss by categories of plants.

Description

Description is to help bring the reader into the writing.  Specific descriptions of sensations including sights, sounds, smell, touch, and taste can make the reader feel as though he or she is part of the experience which can be a useful strategy in proving a thesis.

Process Analysis

Using examples and facts can support your paper, but simply using these is not enough; you must also think critically about what you have read and react to it. Analysis means to go beyond the obvious and beyond what is literally in the text.

It is very tempting when writing a paper to simply paraphrase or summarize a source than it is to think critically about what was written. Often, when the source is difficult to understand, just repeating his or her words may seem simpler.

Analysis, however, requires a complete understanding of the point the author is making because you must take a complex idea, break it down in to smaller, simpler parts, and then figure out how they fit together.

Examples and Illustrations

Using examples is a way to explain or to prove that our position is accurate.  Examples can be true or actual situations or they can be hypothetical.

Using examples are more effective if they are close to or exactly the same circumstances as in the case you are trying to prove.  If a person can think to themselves that there is a significant difference, the example will not be effective.

If you are using an actual event, you should be careful to be sure you are familiar with the details.  If not, using the example can backfire and convince the person of the opposite.

If you use a hypothetical situation as an example, you should think it through completely first.  Again, if it is not a good example, it would weaken your position.

Attorneys use example to argue cases.  In fact, if they can present a previously decided case in the same jurisdiction that matches up with the existing decision, the judge must decide in their favor.  The supportive case has to be “on all fours,” that is, match up on all the essential points.

Compare/Contrast

We compare and contrast things all the time in life to make decisions from where we buy our groceries to what car to buy. Just as in life, college papers also often require comparing and contrasting. You might have to compare two historic events, world leaders, or poems. Often, even if it is not required, ideas become clearer when you evaluate them in relation to one another.

It is important to remember to be fair when contrasting ideas to show that one is superior.  If you note only the strengths of one and only the faults of the other, your readers may determine that your argument is weak or not credible.

One way to do this is to think about how they are similar in addition to how they differ.  Take the words  liberal  and  conservative  for example. Usually these are seen as very different things, but they do have similarities. They both are political philosophies, they both have a moral underpinning, and they both have people who passionately support their ideals.

Cause/Effect

Another way of proving a thesis is to show the causes and/or effects.  For example, if your thesis is that the use of wind power is the best way of producing electricity, showing the effects of how much electricity can be produced is good proof.  You could also include the bad effects of some other means of producing electricity.

Persuasion/Argumentation

In a way, all communication has a purpose: to persuade or argue for the validity of what is being said.  Even when a person is expressing an emotion, effective communication involves convincing the audience that those feelings are legitimate.

The same strategies used to develop a good writing are used when the purpose is specifically to persuade.  Transitional devices, use of examples, facts and statistics, primary and secondary sources, and rhetorical modes including analysis, definition, comparison/contrast, and cause and/or Effect are ways to prove your point.

See the difference in how these strategies can be used for persuasion.

A simple sentence:  It was a cold day.

Transitional device:  In addition to being dark and cloudy, it was a cold day.

Example:  It was so cold that the chill of the air was felt right through layers of clothing.

Facts/Statistics:  It was a record-breaking cold with temperatures plummeting below 15o F.

Primary Source:  According to Jones, “Temperatures fell as though we were entering another Ice Age.”

Secondary Source:  Goldstein agreed: “This cold wave surpasses any recorded to date” (qtd. in Jones).

Rhetorical Modes

Narration:  While I was walking in the park, I noticed that it was a cold day.

Definition:  The temperature at which water freezes is 32o F.  This is typically the temperature used to describe weather conditions as  freezing.

Description:  It was so cold that frost was forming on the windows and the leaves on the plants were curling.

Process Analysis:  The measurement of what is considered  a cold day  includes the temperature and humidity reading along with any wind-chill factor.

Comparison/Contrast:  It was so cold this year that the strawberries froze and fell to the ground whereas last year’s crop survived the freeze.

Cause/Effect:  Because it was so cold, the strawberries froze and fell to the ground.

Persuasion/Argumentation:  The reading on the thermometer of 32o F, the frost or the windows, and the curling leaves of the plants show it was a cold day.

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Write Clearly: Using Evidence Effectively

What is evidence, what are primary and secondary sources, how do i use evidence, should i cite my evidence.

  • Selecting and Analyzing Evidence
  • Incorporating Evidence

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Most of the assignments you will do in university will ask you to make an argument, to take a stance, or to prove a hypothesis. The best way to do this is to research the topic, develop a thesis statement, hypothesis, or claim and then use evidence to support this claim.

Evidence is the facts, examples, or sources used to support a claim. In the sciences, this might be data retrieved from an experiment or a scientific journal article. In the humanities, it may be a quotation from the text, published information from academic critics, or a theory that supports your claims.

Think of evidence as the supports that buttress your claim, making it more solid than it would be alone. In fact, if you make a claim or an argument without evidence, your paper could appear to be unsupported opinion or not particularly well-researched. Even when the assignment elicits opinion, your paper will be more convincing if you provide evidence and the instructor may still be looking for an argument. It is also very important to remember that to use evidence effectively means to incorporate it well and to analyse it in a way that makes its connection to your argument clear and logical.

Evidence can be separated into two categories, primary and secondary sources.

Primary Sources

Primary sources are first-hand experiences, accounts, observations, reports, or narratives. Primary sources could include diaries, letters, contemporary newspapers, or eyewitness accounts of events. Official documents (e.g. the Canadian Charter of Rights and Freedoms), data collected from surveys, and lab results are also primary sources. In the humanities, the text you are writing about is also considered your primary text. So, for example, if you are writing a paper on Macbeth, then the play is your primary source. In the sciences, primary sources are also the results of an experiment that have been peer-reviewed and published in an academic journal.

Secondary Sources

Secondary sources are critiques written by academics and scholars. These sources are considered secondary because they examine primary sources to present an argument or support a point of view; as such, they may be selective with their evidence or insert themselves in a debate happening among a number of scholars. In the sciences, reviews, which are surveys of articles that demonstrate an understanding of a field, are considered secondary. It is a good idea to be aware of the bias in secondary sources when employing them as evidence.

Frequently the assignment will specify whether you need to use primary or secondary sources; however, if you are unsure about what kind of sources you need, ask your professor for clarification.

Among the forms of evidence you might draw from are:

  • Graphs, charts, tables, or figures
  • Experiments or studies done by peer-reviewed sources
  • Surveys conducted by reputable sources
  • Quotes or paraphrases from primary sources
  • Quotes or paraphrases from secondary sources

Note: In general, you should not use quotes in science papers.

Each discipline and each genre of writing will have standards against which it will gauge the academic merit and use of evidence. But some general rules apply (a detailed explanation of each rule follows this list):

  • Make sure your evidence is appropriate to the paper you are writing
  • Make sure the evidence does, in fact, support your argument or your claims
  • Tell your reader why this evidence supports your argument/claims
  • Make sure you have an appropriate amount of evidence
  • Make sure to appropriately cite your evidence

NOTE: Though not a general rule, your paper will be strengthened by acknowledging competing evidence – evidence that challenges your argument. This demonstrates that you have fully researched your topic and can counter claims against your argument.

After integrating your evidence into your paper, it is very important that you properly cite your evidence. Each discipline has their preferred style (MLA, APA, Chicago, etc.); if you are unclear what citation style to use, ask your professor or teaching assistant for direction.

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Chapter 8: Making Academic Arguments

8.3 Types of Evidence in Academic Arguments

Robin Jeffrey and Yvonne Bruce

All academic writers use evidence to support their claims. However, different writing tasks in different fields require different types of evidence. Often, a combination of different types of evidence is required in order to adequately support and develop a point.  Evidence is not simply “facts.” Evidence is not simply “quotes.”

Evidence is what a writer uses to support or defend his or her argument, and only valid and credible evidence is enough to make an argument strong.

For a review of what evidence means in terms of developing body paragraphs within an essay, you can refer back to Section 4.3 .

As you develop your research-supported essay, consider not only what types of evidence might support your ideas but also what types of evidence will be considered valid or credible according to the academic discipline or academic audience for which you are writing.

Evidence in the Humanities: Literature, Art, Film, Music, Philosophy

  • Scholarly essays that analyze original works
  • Details from an image, a film, or other work of art
  • Passages from a musical composition
  • Passages of text, including poetry

Evidence in the Humanities: History

  • Primary Sources (photos, letters, maps, official documents, etc.)
  • Other books or articles that interpret primary sources or other evidence.

Evidence in the Social Sciences: Psychology, Sociology, Political Science, Anthropology

  • Books or articles that interpret data and results from other people’s original experiments or studies.
  • Results from one’s own field research (including interviews, surveys, observations, etc.)
  • Data from one’s own experiments
  • Statistics derived from large studies

Evidence in the Sciences: Biology, Chemistry, Physics

  • Data from the author of the paper’s own experiments

What remains consistent no matter the discipline in which you are writing, however, is that “evidence” NEVER speaks for itself—you must integrate it into your own argument or claim and demonstrate that the evidence supports your thesis. In addition, be alert to evidence that seems to contradict your claims or offers a counterargument to it: rebutting that counterargument can be powerful evidence for your claim. You can also make evidence that isn’t  there  an integral part of your argument, too. If you can’t find the evidence you think you need, ask yourself why it seems to be lacking, or if its absence adds a new dimension to your thinking about the topic. Remember,  evidence  is not the piling up of facts or quotes: evidence is only one component of a strong, well supported, well argued, and well written composition. 

8.3 Types of Evidence in Academic Arguments by Robin Jeffrey and Yvonne Bruce is licensed under a Creative Commons Attribution 4.0 International License , except where otherwise noted.

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The Writing Center • University of North Carolina at Chapel Hill

What this handout is about

This handout will provide a broad overview of gathering and using evidence. It will help you decide what counts as evidence, put evidence to work in your writing, and determine whether you have enough evidence. It will also offer links to additional resources.

Introduction

Many papers that you write in college will require you to make an argument ; this means that you must take a position on the subject you are discussing and support that position with evidence. It’s important that you use the right kind of evidence, that you use it effectively, and that you have an appropriate amount of it. If, for example, your philosophy professor didn’t like it that you used a survey of public opinion as your primary evidence in your ethics paper, you need to find out more about what philosophers count as good evidence. If your instructor has told you that you need more analysis, suggested that you’re “just listing” points or giving a “laundry list,” or asked you how certain points are related to your argument, it may mean that you can do more to fully incorporate your evidence into your argument. Comments like “for example?,” “proof?,” “go deeper,” or “expand” in the margins of your graded paper suggest that you may need more evidence. Let’s take a look at each of these issues—understanding what counts as evidence, using evidence in your argument, and deciding whether you need more evidence.

What counts as evidence?

Before you begin gathering information for possible use as evidence in your argument, you need to be sure that you understand the purpose of your assignment. If you are working on a project for a class, look carefully at the assignment prompt. It may give you clues about what sorts of evidence you will need. Does the instructor mention any particular books you should use in writing your paper or the names of any authors who have written about your topic? How long should your paper be (longer works may require more, or more varied, evidence)? What themes or topics come up in the text of the prompt? Our handout on understanding writing assignments can help you interpret your assignment. It’s also a good idea to think over what has been said about the assignment in class and to talk with your instructor if you need clarification or guidance.

What matters to instructors?

Instructors in different academic fields expect different kinds of arguments and evidence—your chemistry paper might include graphs, charts, statistics, and other quantitative data as evidence, whereas your English paper might include passages from a novel, examples of recurring symbols, or discussions of characterization in the novel. Consider what kinds of sources and evidence you have seen in course readings and lectures. You may wish to see whether the Writing Center has a handout regarding the specific academic field you’re working in—for example, literature , sociology , or history .

What are primary and secondary sources?

A note on terminology: many researchers distinguish between primary and secondary sources of evidence (in this case, “primary” means “first” or “original,” not “most important”). Primary sources include original documents, photographs, interviews, and so forth. Secondary sources present information that has already been processed or interpreted by someone else. For example, if you are writing a paper about the movie “The Matrix,” the movie itself, an interview with the director, and production photos could serve as primary sources of evidence. A movie review from a magazine or a collection of essays about the film would be secondary sources. Depending on the context, the same item could be either a primary or a secondary source: if I am writing about people’s relationships with animals, a collection of stories about animals might be a secondary source; if I am writing about how editors gather diverse stories into collections, the same book might now function as a primary source.

Where can I find evidence?

Here are some examples of sources of information and tips about how to use them in gathering evidence. Ask your instructor if you aren’t sure whether a certain source would be appropriate for your paper.

Print and electronic sources

Books, journals, websites, newspapers, magazines, and documentary films are some of the most common sources of evidence for academic writing. Our handout on evaluating print sources will help you choose your print sources wisely, and the library has a tutorial on evaluating both print sources and websites. A librarian can help you find sources that are appropriate for the type of assignment you are completing. Just visit the reference desk at Davis or the Undergraduate Library or chat with a librarian online (the library’s IM screen name is undergradref).

Observation

Sometimes you can directly observe the thing you are interested in, by watching, listening to, touching, tasting, or smelling it. For example, if you were asked to write about Mozart’s music, you could listen to it; if your topic was how businesses attract traffic, you might go and look at window displays at the mall.

An interview is a good way to collect information that you can’t find through any other type of research. An interview can provide an expert’s opinion, biographical or first-hand experiences, and suggestions for further research.

Surveys allow you to find out some of what a group of people thinks about a topic. Designing an effective survey and interpreting the data you get can be challenging, so it’s a good idea to check with your instructor before creating or administering a survey.

Experiments

Experimental data serve as the primary form of scientific evidence. For scientific experiments, you should follow the specific guidelines of the discipline you are studying. For writing in other fields, more informal experiments might be acceptable as evidence. For example, if you want to prove that food choices in a cafeteria are affected by gender norms, you might ask classmates to undermine those norms on purpose and observe how others react. What would happen if a football player were eating dinner with his teammates and he brought a small salad and diet drink to the table, all the while murmuring about his waistline and wondering how many fat grams the salad dressing contained?

Personal experience

Using your own experiences can be a powerful way to appeal to your readers. You should, however, use personal experience only when it is appropriate to your topic, your writing goals, and your audience. Personal experience should not be your only form of evidence in most papers, and some disciplines frown on using personal experience at all. For example, a story about the microscope you received as a Christmas gift when you were nine years old is probably not applicable to your biology lab report.

Using evidence in an argument

Does evidence speak for itself.

Absolutely not. After you introduce evidence into your writing, you must say why and how this evidence supports your argument. In other words, you have to explain the significance of the evidence and its function in your paper. What turns a fact or piece of information into evidence is the connection it has with a larger claim or argument: evidence is always evidence for or against something, and you have to make that link clear.

As writers, we sometimes assume that our readers already know what we are talking about; we may be wary of elaborating too much because we think the point is obvious. But readers can’t read our minds: although they may be familiar with many of the ideas we are discussing, they don’t know what we are trying to do with those ideas unless we indicate it through explanations, organization, transitions, and so forth. Try to spell out the connections that you were making in your mind when you chose your evidence, decided where to place it in your paper, and drew conclusions based on it. Remember, you can always cut prose from your paper later if you decide that you are stating the obvious.

Here are some questions you can ask yourself about a particular bit of evidence:

  • OK, I’ve just stated this point, but so what? Why is it interesting? Why should anyone care?
  • What does this information imply?
  • What are the consequences of thinking this way or looking at a problem this way?
  • I’ve just described what something is like or how I see it, but why is it like that?
  • I’ve just said that something happens—so how does it happen? How does it come to be the way it is?
  • Why is this information important? Why does it matter?
  • How is this idea related to my thesis? What connections exist between them? Does it support my thesis? If so, how does it do that?
  • Can I give an example to illustrate this point?

Answering these questions may help you explain how your evidence is related to your overall argument.

How can I incorporate evidence into my paper?

There are many ways to present your evidence. Often, your evidence will be included as text in the body of your paper, as a quotation, paraphrase, or summary. Sometimes you might include graphs, charts, or tables; excerpts from an interview; or photographs or illustrations with accompanying captions.

When you quote, you are reproducing another writer’s words exactly as they appear on the page. Here are some tips to help you decide when to use quotations:

  • Quote if you can’t say it any better and the author’s words are particularly brilliant, witty, edgy, distinctive, a good illustration of a point you’re making, or otherwise interesting.
  • Quote if you are using a particularly authoritative source and you need the author’s expertise to back up your point.
  • Quote if you are analyzing diction, tone, or a writer’s use of a specific word or phrase.
  • Quote if you are taking a position that relies on the reader’s understanding exactly what another writer says about the topic.

Be sure to introduce each quotation you use, and always cite your sources. See our handout on quotations for more details on when to quote and how to format quotations.

Like all pieces of evidence, a quotation can’t speak for itself. If you end a paragraph with a quotation, that may be a sign that you have neglected to discuss the importance of the quotation in terms of your argument. It’s important to avoid “plop quotations,” that is, quotations that are just dropped into your paper without any introduction, discussion, or follow-up.

Paraphrasing

When you paraphrase, you take a specific section of a text and put it into your own words. Putting it into your own words doesn’t mean just changing or rearranging a few of the author’s words: to paraphrase well and avoid plagiarism, try setting your source aside and restating the sentence or paragraph you have just read, as though you were describing it to another person. Paraphrasing is different than summary because a paraphrase focuses on a particular, fairly short bit of text (like a phrase, sentence, or paragraph). You’ll need to indicate when you are paraphrasing someone else’s text by citing your source correctly, just as you would with a quotation.

When might you want to paraphrase?

  • Paraphrase when you want to introduce a writer’s position, but their original words aren’t special enough to quote.
  • Paraphrase when you are supporting a particular point and need to draw on a certain place in a text that supports your point—for example, when one paragraph in a source is especially relevant.
  • Paraphrase when you want to present a writer’s view on a topic that differs from your position or that of another writer; you can then refute writer’s specific points in your own words after you paraphrase.
  • Paraphrase when you want to comment on a particular example that another writer uses.
  • Paraphrase when you need to present information that’s unlikely to be questioned.

When you summarize, you are offering an overview of an entire text, or at least a lengthy section of a text. Summary is useful when you are providing background information, grounding your own argument, or mentioning a source as a counter-argument. A summary is less nuanced than paraphrased material. It can be the most effective way to incorporate a large number of sources when you don’t have a lot of space. When you are summarizing someone else’s argument or ideas, be sure this is clear to the reader and cite your source appropriately.

Statistics, data, charts, graphs, photographs, illustrations

Sometimes the best evidence for your argument is a hard fact or visual representation of a fact. This type of evidence can be a solid backbone for your argument, but you still need to create context for your reader and draw the connections you want them to make. Remember that statistics, data, charts, graph, photographs, and illustrations are all open to interpretation. Guide the reader through the interpretation process. Again, always, cite the origin of your evidence if you didn’t produce the material you are using yourself.

Do I need more evidence?

Let’s say that you’ve identified some appropriate sources, found some evidence, explained to the reader how it fits into your overall argument, incorporated it into your draft effectively, and cited your sources. How do you tell whether you’ve got enough evidence and whether it’s working well in the service of a strong argument or analysis? Here are some techniques you can use to review your draft and assess your use of evidence.

Make a reverse outline

A reverse outline is a great technique for helping you see how each paragraph contributes to proving your thesis. When you make a reverse outline, you record the main ideas in each paragraph in a shorter (outline-like) form so that you can see at a glance what is in your paper. The reverse outline is helpful in at least three ways. First, it lets you see where you have dealt with too many topics in one paragraph (in general, you should have one main idea per paragraph). Second, the reverse outline can help you see where you need more evidence to prove your point or more analysis of that evidence. Third, the reverse outline can help you write your topic sentences: once you have decided what you want each paragraph to be about, you can write topic sentences that explain the topics of the paragraphs and state the relationship of each topic to the overall thesis of the paper.

For tips on making a reverse outline, see our handout on organization .

Color code your paper

You will need three highlighters or colored pencils for this exercise. Use one color to highlight general assertions. These will typically be the topic sentences in your paper. Next, use another color to highlight the specific evidence you provide for each assertion (including quotations, paraphrased or summarized material, statistics, examples, and your own ideas). Lastly, use another color to highlight analysis of your evidence. Which assertions are key to your overall argument? Which ones are especially contestable? How much evidence do you have for each assertion? How much analysis? In general, you should have at least as much analysis as you do evidence, or your paper runs the risk of being more summary than argument. The more controversial an assertion is, the more evidence you may need to provide in order to persuade your reader.

Play devil’s advocate, act like a child, or doubt everything

This technique may be easiest to use with a partner. Ask your friend to take on one of the roles above, then read your paper aloud to them. After each section, pause and let your friend interrogate you. If your friend is playing devil’s advocate, they will always take the opposing viewpoint and force you to keep defending yourself. If your friend is acting like a child, they will question every sentence, even seemingly self-explanatory ones. If your friend is a doubter, they won’t believe anything you say. Justifying your position verbally or explaining yourself will force you to strengthen the evidence in your paper. If you already have enough evidence but haven’t connected it clearly enough to your main argument, explaining to your friend how the evidence is relevant or what it proves may help you to do so.

Common questions and additional resources

  • I have a general topic in mind; how can I develop it so I’ll know what evidence I need? And how can I get ideas for more evidence? See our handout on brainstorming .
  • Who can help me find evidence on my topic? Check out UNC Libraries .
  • I’m writing for a specific purpose; how can I tell what kind of evidence my audience wants? See our handouts on audience , writing for specific disciplines , and particular writing assignments .
  • How should I read materials to gather evidence? See our handout on reading to write .
  • How can I make a good argument? Check out our handouts on argument and thesis statements .
  • How do I tell if my paragraphs and my paper are well-organized? Review our handouts on paragraph development , transitions , and reorganizing drafts .
  • How do I quote my sources and incorporate those quotes into my text? Our handouts on quotations and avoiding plagiarism offer useful tips.
  • How do I cite my evidence? See the UNC Libraries citation tutorial .
  • I think that I’m giving evidence, but my instructor says I’m using too much summary. How can I tell? Check out our handout on using summary wisely.
  • I want to use personal experience as evidence, but can I say “I”? We have a handout on when to use “I.”

Works consulted

We consulted these works while writing this handout. This is not a comprehensive list of resources on the handout’s topic, and we encourage you to do your own research to find additional publications. Please do not use this list as a model for the format of your own reference list, as it may not match the citation style you are using. For guidance on formatting citations, please see the UNC Libraries citation tutorial . We revise these tips periodically and welcome feedback.

Lunsford, Andrea A., and John J. Ruszkiewicz. 2016. Everything’s an Argument , 7th ed. Boston: Bedford/St Martin’s.

Miller, Richard E., and Kurt Spellmeyer. 2016. The New Humanities Reader , 5th ed. Boston: Cengage.

University of Maryland. 2019. “Research Using Primary Sources.” Research Guides. Last updated October 28, 2019. https://lib.guides.umd.edu/researchusingprimarysources .

You may reproduce it for non-commercial use if you use the entire handout and attribute the source: The Writing Center, University of North Carolina at Chapel Hill

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evidence to support a thesis

6.3 Supporting a Thesis

Learning objectives.

  • Understand the general goal of writing a paper.
  • Be aware of how you can create supporting details.
  • Recognize procedures for using supporting details.

Supporting your thesis is the overall goal of your whole paper. It means presenting information that will convince your readers that your thesis makes sense. You need to take care to choose the best supporting details for your thesis.

Creating Supporting Details

evidence to support a thesis

You can and should use a variety of kinds of support for your thesis. One of the easiest forms of support to use is personal observations and experiences. The strong point in favor of using personal anecdotes is that they add interest and emotion, both of which can pull audiences along. On the other hand, the anecdotal and subjective nature of personal observations and experiences makes them too weak to support a thesis on their own.

Since they can be verified, facts can help strengthen personal anecdotes by giving them substance and grounding. For example, if you tell a personal anecdote about having lost twenty pounds by using a Hula-Hoop for twenty minutes after every meal, the story seems interesting, but readers might not think it is a serious weight-loss technique. But if you follow up the story with some facts about the benefit of exercising for twenty minutes after every meal, the Hula-Hoop story takes on more credibility. Although facts are undeniably useful in writing projects, a paper full of nothing but fact upon fact would not be very interesting to read.

Like anecdotal information, your opinions can help make facts more interesting. On their own, opinions are weak support for a thesis. But coupled with specific relevant facts, opinions can add a great deal of interest to your work. In addition, opinions are excellent tools for convincing an audience that your thesis makes sense.

Similar to your opinions are details from expert testimony and personal interviews. Both of these kinds of sources provide no shortage of opinions. Expert opinions can carry a little more clout than your own, but you should be careful not to rely too much on them. However, it’s safe to say that finding quality opinions from others and presenting them in support of your ideas will make others more likely to agree with your ideas.

Statistics can provide excellent support for your thesis. Statistics are facts expressed in numbers. For example, say you relay the results of a study that showed that 90 percent of people who exercise for twenty minutes after every meal lose two pounds per week. Such statistics lend strong, credible support to a thesis.

Examples Choices of details used to clarify a point for readers. —real or made up—are powerful tools you can use to clarify and support your facts, opinions, and statistics. A detail that sounds insignificant or meaningless can become quite significant when clarified with an example. For example, you could cite your sister Lydia as an example of someone who lost thirty pounds in a month by exercising after every meal. Using a name and specifics makes it seem very personal and real. As long as you use examples ethically and logically, they can be tremendous assets. On the other hand, when using examples, take care not to intentionally mislead your readers or distort reality. For example, if your sister Lydia also gave birth to a baby during that month, leaving that key bit of information out of the example would be misleading.

Procedures for Using Supporting Details

You are likely to find or think of details that relate to your topic and are interesting, but that do not support your thesis. Including such details in your paper is unwise because they are distracting and irrelevant.

In today’s rich world of technology, you have many options when it comes to choosing sources of information. Make sure you choose only reliable sources. Even if some information sounds absolutely amazing, if it comes from an unreliable source, don’t use it. It might sound amazing for a reason—because it has been amazingly made up.

evidence to support a thesis

When you find a new detail, make sure you can find it in at least one more source so you can safely accept it as true. Take this step even when you think the source is reliable because even reliable sources can include errors. When you find new information, make sure to put it into your essay or file of notes right away. Never rely on your memory.

Take great care to organize your supporting details so that they can best support your thesis. One strategy is to list the most powerful information first. Another is to present information in a natural sequence, such as chronological A method of narrative arrangement that places events in their order of occurrence. order. A third option is to use a compare/contrast A writing pattern used to explain how two (or more) things are alike and different. format. Choose whatever method you think will most clearly support your thesis.

Make sure to use at least two or three supporting details for each main idea. In a longer essay, you can easily include more than three supporting details per idea, but in a shorter essay, you might not have space for any more.

Key Takeaways

  • A thesis gives an essay a purpose, which is to present details that support the thesis.
  • To create supporting details, you can use personal observations and experiences, facts, opinions, statistics, and examples.
  • When choosing details for your essay, exclude any that do not support your thesis, make sure you use only reliable sources, double-check your facts for accuracy, organize your details to best support your thesis, and include at least two or three details to support each main idea.

Choose a topic of interest to you. Write a personal observation or experience, a fact, an opinion, a statistic, and an example related to your topic. Present your information in a table with the following headings.

Choose a topic of interest to you. On the Internet, find five reliable sources and five unreliable sources and fill in a table with the following headings.

  • Choose a topic of interest to you and write a possible thesis related to the topic. Write one sentence that is both related to the topic and relevant to the thesis. Write one sentence that is related to the topic but not relevant to the thesis.

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Tips and Examples for Writing Thesis Statements

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This resource provides tips for creating a thesis statement and examples of different types of thesis statements.

Tips for Writing Your Thesis Statement

1. Determine what kind of paper you are writing:

  • An analytical paper breaks down an issue or an idea into its component parts, evaluates the issue or idea, and presents this breakdown and evaluation to the audience.
  • An expository (explanatory) paper explains something to the audience.
  • An argumentative paper makes a claim about a topic and justifies this claim with specific evidence. The claim could be an opinion, a policy proposal, an evaluation, a cause-and-effect statement, or an interpretation. The goal of the argumentative paper is to convince the audience that the claim is true based on the evidence provided.

If you are writing a text that does not fall under these three categories (e.g., a narrative), a thesis statement somewhere in the first paragraph could still be helpful to your reader.

2. Your thesis statement should be specific—it should cover only what you will discuss in your paper and should be supported with specific evidence.

3. The thesis statement usually appears at the end of the first paragraph of a paper.

4. Your topic may change as you write, so you may need to revise your thesis statement to reflect exactly what you have discussed in the paper.

Thesis Statement Examples

Example of an analytical thesis statement:

The paper that follows should:

  • Explain the analysis of the college admission process
  • Explain the challenge facing admissions counselors

Example of an expository (explanatory) thesis statement:

  • Explain how students spend their time studying, attending class, and socializing with peers

Example of an argumentative thesis statement:

  • Present an argument and give evidence to support the claim that students should pursue community projects before entering college
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What is a thesis | A Complete Guide with Examples

Madalsa

Table of Contents

A thesis is a comprehensive academic paper based on your original research that presents new findings, arguments, and ideas of your study. It’s typically submitted at the end of your master’s degree or as a capstone of your bachelor’s degree.

However, writing a thesis can be laborious, especially for beginners. From the initial challenge of pinpointing a compelling research topic to organizing and presenting findings, the process is filled with potential pitfalls.

Therefore, to help you, this guide talks about what is a thesis. Additionally, it offers revelations and methodologies to transform it from an overwhelming task to a manageable and rewarding academic milestone.

What is a thesis?

A thesis is an in-depth research study that identifies a particular topic of inquiry and presents a clear argument or perspective about that topic using evidence and logic.

Writing a thesis showcases your ability of critical thinking, gathering evidence, and making a compelling argument. Integral to these competencies is thorough research, which not only fortifies your propositions but also confers credibility to your entire study.

Furthermore, there's another phenomenon you might often confuse with the thesis: the ' working thesis .' However, they aren't similar and shouldn't be used interchangeably.

A working thesis, often referred to as a preliminary or tentative thesis, is an initial version of your thesis statement. It serves as a draft or a starting point that guides your research in its early stages.

As you research more and gather more evidence, your initial thesis (aka working thesis) might change. It's like a starting point that can be adjusted as you learn more. It's normal for your main topic to change a few times before you finalize it.

While a thesis identifies and provides an overarching argument, the key to clearly communicating the central point of that argument lies in writing a strong thesis statement.

What is a thesis statement?

A strong thesis statement (aka thesis sentence) is a concise summary of the main argument or claim of the paper. It serves as a critical anchor in any academic work, succinctly encapsulating the primary argument or main idea of the entire paper.

Typically found within the introductory section, a strong thesis statement acts as a roadmap of your thesis, directing readers through your arguments and findings. By delineating the core focus of your investigation, it offers readers an immediate understanding of the context and the gravity of your study.

Furthermore, an effectively crafted thesis statement can set forth the boundaries of your research, helping readers anticipate the specific areas of inquiry you are addressing.

Different types of thesis statements

A good thesis statement is clear, specific, and arguable. Therefore, it is necessary for you to choose the right type of thesis statement for your academic papers.

Thesis statements can be classified based on their purpose and structure. Here are the primary types of thesis statements:

Argumentative (or Persuasive) thesis statement

Purpose : To convince the reader of a particular stance or point of view by presenting evidence and formulating a compelling argument.

Example : Reducing plastic use in daily life is essential for environmental health.

Analytical thesis statement

Purpose : To break down an idea or issue into its components and evaluate it.

Example : By examining the long-term effects, social implications, and economic impact of climate change, it becomes evident that immediate global action is necessary.

Expository (or Descriptive) thesis statement

Purpose : To explain a topic or subject to the reader.

Example : The Great Depression, spanning the 1930s, was a severe worldwide economic downturn triggered by a stock market crash, bank failures, and reduced consumer spending.

Cause and effect thesis statement

Purpose : To demonstrate a cause and its resulting effect.

Example : Overuse of smartphones can lead to impaired sleep patterns, reduced face-to-face social interactions, and increased levels of anxiety.

Compare and contrast thesis statement

Purpose : To highlight similarities and differences between two subjects.

Example : "While both novels '1984' and 'Brave New World' delve into dystopian futures, they differ in their portrayal of individual freedom, societal control, and the role of technology."

When you write a thesis statement , it's important to ensure clarity and precision, so the reader immediately understands the central focus of your work.

What is the difference between a thesis and a thesis statement?

While both terms are frequently used interchangeably, they have distinct meanings.

A thesis refers to the entire research document, encompassing all its chapters and sections. In contrast, a thesis statement is a brief assertion that encapsulates the central argument of the research.

Here’s an in-depth differentiation table of a thesis and a thesis statement.

Now, to craft a compelling thesis, it's crucial to adhere to a specific structure. Let’s break down these essential components that make up a thesis structure

15 components of a thesis structure

Navigating a thesis can be daunting. However, understanding its structure can make the process more manageable.

Here are the key components or different sections of a thesis structure:

Your thesis begins with the title page. It's not just a formality but the gateway to your research.

title-page-of-a-thesis

Here, you'll prominently display the necessary information about you (the author) and your institutional details.

  • Title of your thesis
  • Your full name
  • Your department
  • Your institution and degree program
  • Your submission date
  • Your Supervisor's name (in some cases)
  • Your Department or faculty (in some cases)
  • Your University's logo (in some cases)
  • Your Student ID (in some cases)

In a concise manner, you'll have to summarize the critical aspects of your research in typically no more than 200-300 words.

Abstract-section-of-a-thesis

This includes the problem statement, methodology, key findings, and conclusions. For many, the abstract will determine if they delve deeper into your work, so ensure it's clear and compelling.

Acknowledgments

Research is rarely a solitary endeavor. In the acknowledgments section, you have the chance to express gratitude to those who've supported your journey.

Acknowledgement-section-of-a-thesis

This might include advisors, peers, institutions, or even personal sources of inspiration and support. It's a personal touch, reflecting the humanity behind the academic rigor.

Table of contents

A roadmap for your readers, the table of contents lists the chapters, sections, and subsections of your thesis.

Table-of-contents-of-a-thesis

By providing page numbers, you allow readers to navigate your work easily, jumping to sections that pique their interest.

List of figures and tables

Research often involves data, and presenting this data visually can enhance understanding. This section provides an organized listing of all figures and tables in your thesis.

List-of-tables-and-figures-in-a-thesis

It's a visual index, ensuring that readers can quickly locate and reference your graphical data.

Introduction

Here's where you introduce your research topic, articulate the research question or objective, and outline the significance of your study.

Introduction-section-of-a-thesis

  • Present the research topic : Clearly articulate the central theme or subject of your research.
  • Background information : Ground your research topic, providing any necessary context or background information your readers might need to understand the significance of your study.
  • Define the scope : Clearly delineate the boundaries of your research, indicating what will and won't be covered.
  • Literature review : Introduce any relevant existing research on your topic, situating your work within the broader academic conversation and highlighting where your research fits in.
  • State the research Question(s) or objective(s) : Clearly articulate the primary questions or objectives your research aims to address.
  • Outline the study's structure : Give a brief overview of how the subsequent sections of your work will unfold, guiding your readers through the journey ahead.

The introduction should captivate your readers, making them eager to delve deeper into your research journey.

Literature review section

Your study correlates with existing research. Therefore, in the literature review section, you'll engage in a dialogue with existing knowledge, highlighting relevant studies, theories, and findings.

Literature-review-section-thesis

It's here that you identify gaps in the current knowledge, positioning your research as a bridge to new insights.

To streamline this process, consider leveraging AI tools. For example, the SciSpace literature review tool enables you to efficiently explore and delve into research papers, simplifying your literature review journey.

Methodology

In the research methodology section, you’ll detail the tools, techniques, and processes you employed to gather and analyze data. This section will inform the readers about how you approached your research questions and ensures the reproducibility of your study.

Methodology-section-thesis

Here's a breakdown of what it should encompass:

  • Research Design : Describe the overall structure and approach of your research. Are you conducting a qualitative study with in-depth interviews? Or is it a quantitative study using statistical analysis? Perhaps it's a mixed-methods approach?
  • Data Collection : Detail the methods you used to gather data. This could include surveys, experiments, observations, interviews, archival research, etc. Mention where you sourced your data, the duration of data collection, and any tools or instruments used.
  • Sampling : If applicable, explain how you selected participants or data sources for your study. Discuss the size of your sample and the rationale behind choosing it.
  • Data Analysis : Describe the techniques and tools you used to process and analyze the data. This could range from statistical tests in quantitative research to thematic analysis in qualitative research.
  • Validity and Reliability : Address the steps you took to ensure the validity and reliability of your findings to ensure that your results are both accurate and consistent.
  • Ethical Considerations : Highlight any ethical issues related to your research and the measures you took to address them, including — informed consent, confidentiality, and data storage and protection measures.

Moreover, different research questions necessitate different types of methodologies. For instance:

  • Experimental methodology : Often used in sciences, this involves a controlled experiment to discern causality.
  • Qualitative methodology : Employed when exploring patterns or phenomena without numerical data. Methods can include interviews, focus groups, or content analysis.
  • Quantitative methodology : Concerned with measurable data and often involves statistical analysis. Surveys and structured observations are common tools here.
  • Mixed methods : As the name implies, this combines both qualitative and quantitative methodologies.

The Methodology section isn’t just about detailing the methods but also justifying why they were chosen. The appropriateness of the methods in addressing your research question can significantly impact the credibility of your findings.

Results (or Findings)

This section presents the outcomes of your research. It's crucial to note that the nature of your results may vary; they could be quantitative, qualitative, or a mix of both.

Results-section-thesis

Quantitative results often present statistical data, showcasing measurable outcomes, and they benefit from tables, graphs, and figures to depict these data points.

Qualitative results , on the other hand, might delve into patterns, themes, or narratives derived from non-numerical data, such as interviews or observations.

Regardless of the nature of your results, clarity is essential. This section is purely about presenting the data without offering interpretations — that comes later in the discussion.

In the discussion section, the raw data transforms into valuable insights.

Start by revisiting your research question and contrast it with the findings. How do your results expand, constrict, or challenge current academic conversations?

Dive into the intricacies of the data, guiding the reader through its implications. Detail potential limitations transparently, signaling your awareness of the research's boundaries. This is where your academic voice should be resonant and confident.

Practical implications (Recommendation) section

Based on the insights derived from your research, this section provides actionable suggestions or proposed solutions.

Whether aimed at industry professionals or the general public, recommendations translate your academic findings into potential real-world actions. They help readers understand the practical implications of your work and how it can be applied to effect change or improvement in a given field.

When crafting recommendations, it's essential to ensure they're feasible and rooted in the evidence provided by your research. They shouldn't merely be aspirational but should offer a clear path forward, grounded in your findings.

The conclusion provides closure to your research narrative.

It's not merely a recap but a synthesis of your main findings and their broader implications. Reconnect with the research questions or hypotheses posited at the beginning, offering clear answers based on your findings.

Conclusion-section-thesis

Reflect on the broader contributions of your study, considering its impact on the academic community and potential real-world applications.

Lastly, the conclusion should leave your readers with a clear understanding of the value and impact of your study.

References (or Bibliography)

Every theory you've expounded upon, every data point you've cited, and every methodological precedent you've followed finds its acknowledgment here.

References-section-thesis

In references, it's crucial to ensure meticulous consistency in formatting, mirroring the specific guidelines of the chosen citation style .

Proper referencing helps to avoid plagiarism , gives credit to original ideas, and allows readers to explore topics of interest. Moreover, it situates your work within the continuum of academic knowledge.

To properly cite the sources used in the study, you can rely on online citation generator tools  to generate accurate citations!

Here’s more on how you can cite your sources.

Often, the depth of research produces a wealth of material that, while crucial, can make the core content of the thesis cumbersome. The appendix is where you mention extra information that supports your research but isn't central to the main text.

Appendices-section-thesis

Whether it's raw datasets, detailed procedural methodologies, extended case studies, or any other ancillary material, the appendices ensure that these elements are archived for reference without breaking the main narrative's flow.

For thorough researchers and readers keen on meticulous details, the appendices provide a treasure trove of insights.

Glossary (optional)

In academics, specialized terminologies, and jargon are inevitable. However, not every reader is versed in every term.

The glossary, while optional, is a critical tool for accessibility. It's a bridge ensuring that even readers from outside the discipline can access, understand, and appreciate your work.

Glossary-section-of-a-thesis

By defining complex terms and providing context, you're inviting a wider audience to engage with your research, enhancing its reach and impact.

Remember, while these components provide a structured framework, the essence of your thesis lies in the originality of your ideas, the rigor of your research, and the clarity of your presentation.

As you craft each section, keep your readers in mind, ensuring that your passion and dedication shine through every page.

Thesis examples

To further elucidate the concept of a thesis, here are illustrative examples from various fields:

Example 1 (History): Abolition, Africans, and Abstraction: the Influence of the ‘Noble Savage’ on British and French Antislavery Thought, 1787-1807 by Suchait Kahlon.
Example 2 (Climate Dynamics): Influence of external forcings on abrupt millennial-scale climate changes: a statistical modelling study by Takahito Mitsui · Michel Crucifix

Checklist for your thesis evaluation

Evaluating your thesis ensures that your research meets the standards of academia. Here's an elaborate checklist to guide you through this critical process.

Content and structure

  • Is the thesis statement clear, concise, and debatable?
  • Does the introduction provide sufficient background and context?
  • Is the literature review comprehensive, relevant, and well-organized?
  • Does the methodology section clearly describe and justify the research methods?
  • Are the results/findings presented clearly and logically?
  • Does the discussion interpret the results in light of the research question and existing literature?
  • Is the conclusion summarizing the research and suggesting future directions or implications?

Clarity and coherence

  • Is the writing clear and free of jargon?
  • Are ideas and sections logically connected and flowing?
  • Is there a clear narrative or argument throughout the thesis?

Research quality

  • Is the research question significant and relevant?
  • Are the research methods appropriate for the question?
  • Is the sample size (if applicable) adequate?
  • Are the data analysis techniques appropriate and correctly applied?
  • Are potential biases or limitations addressed?

Originality and significance

  • Does the thesis contribute new knowledge or insights to the field?
  • Is the research grounded in existing literature while offering fresh perspectives?

Formatting and presentation

  • Is the thesis formatted according to institutional guidelines?
  • Are figures, tables, and charts clear, labeled, and referenced in the text?
  • Is the bibliography or reference list complete and consistently formatted?
  • Are appendices relevant and appropriately referenced in the main text?

Grammar and language

  • Is the thesis free of grammatical and spelling errors?
  • Is the language professional, consistent, and appropriate for an academic audience?
  • Are quotations and paraphrased material correctly cited?

Feedback and revision

  • Have you sought feedback from peers, advisors, or experts in the field?
  • Have you addressed the feedback and made the necessary revisions?

Overall assessment

  • Does the thesis as a whole feel cohesive and comprehensive?
  • Would the thesis be understandable and valuable to someone in your field?

Ensure to use this checklist to leave no ground for doubt or missed information in your thesis.

After writing your thesis, the next step is to discuss and defend your findings verbally in front of a knowledgeable panel. You’ve to be well prepared as your professors may grade your presentation abilities.

Preparing your thesis defense

A thesis defense, also known as "defending the thesis," is the culmination of a scholar's research journey. It's the final frontier, where you’ll present their findings and face scrutiny from a panel of experts.

Typically, the defense involves a public presentation where you’ll have to outline your study, followed by a question-and-answer session with a committee of experts. This committee assesses the validity, originality, and significance of the research.

The defense serves as a rite of passage for scholars. It's an opportunity to showcase expertise, address criticisms, and refine arguments. A successful defense not only validates the research but also establishes your authority as a researcher in your field.

Here’s how you can effectively prepare for your thesis defense .

Now, having touched upon the process of defending a thesis, it's worth noting that scholarly work can take various forms, depending on academic and regional practices.

One such form, often paralleled with the thesis, is the 'dissertation.' But what differentiates the two?

Dissertation vs. Thesis

Often used interchangeably in casual discourse, they refer to distinct research projects undertaken at different levels of higher education.

To the uninitiated, understanding their meaning might be elusive. So, let's demystify these terms and delve into their core differences.

Here's a table differentiating between the two.

Wrapping up

From understanding the foundational concept of a thesis to navigating its various components, differentiating it from a dissertation, and recognizing the importance of proper citation — this guide covers it all.

As scholars and readers, understanding these nuances not only aids in academic pursuits but also fosters a deeper appreciation for the relentless quest for knowledge that drives academia.

It’s important to remember that every thesis is a testament to curiosity, dedication, and the indomitable spirit of discovery.

Good luck with your thesis writing!

Frequently Asked Questions

A thesis typically ranges between 40-80 pages, but its length can vary based on the research topic, institution guidelines, and level of study.

A PhD thesis usually spans 200-300 pages, though this can vary based on the discipline, complexity of the research, and institutional requirements.

To identify a thesis topic, consider current trends in your field, gaps in existing literature, personal interests, and discussions with advisors or mentors. Additionally, reviewing related journals and conference proceedings can provide insights into potential areas of exploration.

The conceptual framework is often situated in the literature review or theoretical framework section of a thesis. It helps set the stage by providing the context, defining key concepts, and explaining the relationships between variables.

A thesis statement should be concise, clear, and specific. It should state the main argument or point of your research. Start by pinpointing the central question or issue your research addresses, then condense that into a single statement, ensuring it reflects the essence of your paper.

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How to Write an Argumentative Essay | Examples & Tips

Published on July 24, 2020 by Jack Caulfield . Revised on July 23, 2023.

An argumentative essay expresses an extended argument for a particular thesis statement . The author takes a clearly defined stance on their subject and builds up an evidence-based case for it.

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Table of contents

When do you write an argumentative essay, approaches to argumentative essays, introducing your argument, the body: developing your argument, concluding your argument, other interesting articles, frequently asked questions about argumentative essays.

You might be assigned an argumentative essay as a writing exercise in high school or in a composition class. The prompt will often ask you to argue for one of two positions, and may include terms like “argue” or “argument.” It will frequently take the form of a question.

The prompt may also be more open-ended in terms of the possible arguments you could make.

Argumentative writing at college level

At university, the vast majority of essays or papers you write will involve some form of argumentation. For example, both rhetorical analysis and literary analysis essays involve making arguments about texts.

In this context, you won’t necessarily be told to write an argumentative essay—but making an evidence-based argument is an essential goal of most academic writing, and this should be your default approach unless you’re told otherwise.

Examples of argumentative essay prompts

At a university level, all the prompts below imply an argumentative essay as the appropriate response.

Your research should lead you to develop a specific position on the topic. The essay then argues for that position and aims to convince the reader by presenting your evidence, evaluation and analysis.

  • Don’t just list all the effects you can think of.
  • Do develop a focused argument about the overall effect and why it matters, backed up by evidence from sources.
  • Don’t just provide a selection of data on the measures’ effectiveness.
  • Do build up your own argument about which kinds of measures have been most or least effective, and why.
  • Don’t just analyze a random selection of doppelgänger characters.
  • Do form an argument about specific texts, comparing and contrasting how they express their thematic concerns through doppelgänger characters.

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An argumentative essay should be objective in its approach; your arguments should rely on logic and evidence, not on exaggeration or appeals to emotion.

There are many possible approaches to argumentative essays, but there are two common models that can help you start outlining your arguments: The Toulmin model and the Rogerian model.

Toulmin arguments

The Toulmin model consists of four steps, which may be repeated as many times as necessary for the argument:

  • Make a claim
  • Provide the grounds (evidence) for the claim
  • Explain the warrant (how the grounds support the claim)
  • Discuss possible rebuttals to the claim, identifying the limits of the argument and showing that you have considered alternative perspectives

The Toulmin model is a common approach in academic essays. You don’t have to use these specific terms (grounds, warrants, rebuttals), but establishing a clear connection between your claims and the evidence supporting them is crucial in an argumentative essay.

Say you’re making an argument about the effectiveness of workplace anti-discrimination measures. You might:

  • Claim that unconscious bias training does not have the desired results, and resources would be better spent on other approaches
  • Cite data to support your claim
  • Explain how the data indicates that the method is ineffective
  • Anticipate objections to your claim based on other data, indicating whether these objections are valid, and if not, why not.

Rogerian arguments

The Rogerian model also consists of four steps you might repeat throughout your essay:

  • Discuss what the opposing position gets right and why people might hold this position
  • Highlight the problems with this position
  • Present your own position , showing how it addresses these problems
  • Suggest a possible compromise —what elements of your position would proponents of the opposing position benefit from adopting?

This model builds up a clear picture of both sides of an argument and seeks a compromise. It is particularly useful when people tend to disagree strongly on the issue discussed, allowing you to approach opposing arguments in good faith.

Say you want to argue that the internet has had a positive impact on education. You might:

  • Acknowledge that students rely too much on websites like Wikipedia
  • Argue that teachers view Wikipedia as more unreliable than it really is
  • Suggest that Wikipedia’s system of citations can actually teach students about referencing
  • Suggest critical engagement with Wikipedia as a possible assignment for teachers who are skeptical of its usefulness.

You don’t necessarily have to pick one of these models—you may even use elements of both in different parts of your essay—but it’s worth considering them if you struggle to structure your arguments.

Regardless of which approach you take, your essay should always be structured using an introduction , a body , and a conclusion .

Like other academic essays, an argumentative essay begins with an introduction . The introduction serves to capture the reader’s interest, provide background information, present your thesis statement , and (in longer essays) to summarize the structure of the body.

Hover over different parts of the example below to see how a typical introduction works.

The spread of the internet has had a world-changing effect, not least on the world of education. The use of the internet in academic contexts is on the rise, and its role in learning is hotly debated. For many teachers who did not grow up with this technology, its effects seem alarming and potentially harmful. This concern, while understandable, is misguided. The negatives of internet use are outweighed by its critical benefits for students and educators—as a uniquely comprehensive and accessible information source; a means of exposure to and engagement with different perspectives; and a highly flexible learning environment.

The body of an argumentative essay is where you develop your arguments in detail. Here you’ll present evidence, analysis, and reasoning to convince the reader that your thesis statement is true.

In the standard five-paragraph format for short essays, the body takes up three of your five paragraphs. In longer essays, it will be more paragraphs, and might be divided into sections with headings.

Each paragraph covers its own topic, introduced with a topic sentence . Each of these topics must contribute to your overall argument; don’t include irrelevant information.

This example paragraph takes a Rogerian approach: It first acknowledges the merits of the opposing position and then highlights problems with that position.

Hover over different parts of the example to see how a body paragraph is constructed.

A common frustration for teachers is students’ use of Wikipedia as a source in their writing. Its prevalence among students is not exaggerated; a survey found that the vast majority of the students surveyed used Wikipedia (Head & Eisenberg, 2010). An article in The Guardian stresses a common objection to its use: “a reliance on Wikipedia can discourage students from engaging with genuine academic writing” (Coomer, 2013). Teachers are clearly not mistaken in viewing Wikipedia usage as ubiquitous among their students; but the claim that it discourages engagement with academic sources requires further investigation. This point is treated as self-evident by many teachers, but Wikipedia itself explicitly encourages students to look into other sources. Its articles often provide references to academic publications and include warning notes where citations are missing; the site’s own guidelines for research make clear that it should be used as a starting point, emphasizing that users should always “read the references and check whether they really do support what the article says” (“Wikipedia:Researching with Wikipedia,” 2020). Indeed, for many students, Wikipedia is their first encounter with the concepts of citation and referencing. The use of Wikipedia therefore has a positive side that merits deeper consideration than it often receives.

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evidence to support a thesis

An argumentative essay ends with a conclusion that summarizes and reflects on the arguments made in the body.

No new arguments or evidence appear here, but in longer essays you may discuss the strengths and weaknesses of your argument and suggest topics for future research. In all conclusions, you should stress the relevance and importance of your argument.

Hover over the following example to see the typical elements of a conclusion.

The internet has had a major positive impact on the world of education; occasional pitfalls aside, its value is evident in numerous applications. The future of teaching lies in the possibilities the internet opens up for communication, research, and interactivity. As the popularity of distance learning shows, students value the flexibility and accessibility offered by digital education, and educators should fully embrace these advantages. The internet’s dangers, real and imaginary, have been documented exhaustively by skeptics, but the internet is here to stay; it is time to focus seriously on its potential for good.

If you want to know more about AI tools , college essays , or fallacies make sure to check out some of our other articles with explanations and examples or go directly to our tools!

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An argumentative essay tends to be a longer essay involving independent research, and aims to make an original argument about a topic. Its thesis statement makes a contentious claim that must be supported in an objective, evidence-based way.

An expository essay also aims to be objective, but it doesn’t have to make an original argument. Rather, it aims to explain something (e.g., a process or idea) in a clear, concise way. Expository essays are often shorter assignments and rely less on research.

At college level, you must properly cite your sources in all essays , research papers , and other academic texts (except exams and in-class exercises).

Add a citation whenever you quote , paraphrase , or summarize information or ideas from a source. You should also give full source details in a bibliography or reference list at the end of your text.

The exact format of your citations depends on which citation style you are instructed to use. The most common styles are APA , MLA , and Chicago .

The majority of the essays written at university are some sort of argumentative essay . Unless otherwise specified, you can assume that the goal of any essay you’re asked to write is argumentative: To convince the reader of your position using evidence and reasoning.

In composition classes you might be given assignments that specifically test your ability to write an argumentative essay. Look out for prompts including instructions like “argue,” “assess,” or “discuss” to see if this is the goal.

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Unit 4: Fundamentals of Academic Essay Writing

24 Evidence Selection

Preview Questions:

  • What types of evidence can you use in your essay?
  • What are the criteria for determining if a piece of evidence is appropriate to use in your essay?
  • Why should you strive to use a variety of types of evidence?

Your next step is to locate evidence to support your claims.

Criteria for selecting effective evidence

  • You must able to understand and explain the evidence easily and clearly.
  • The evidence should be directly related to your supporting points; it must support your thesis.
  • A variety of types of evidence can make your writing more credible.

1 Easy to understand

If you find an article, but cannot understand the information in the article, it will be difficult or even impossible to use the evidence. You must therefore make sure you can understand the information you want use so you can paraphrase it clearly. Since most of the evidence you use will be paraphrased (not quoted), it is essential that you select information that you can easily express in your own words.

2 Supports your thesis statement

The evidence must be directly related to your topic and thesis statement. Even if the information is very interesting and easy to paraphrase, if it is not related to your thesis, it could lead to problems with logic or cause confusion in your writing.

3 Types of evidence

Using various types of evidence will show your reader you are familiar with the topic. There are two general categories of evidence, documented and undocumented.

Documented evidence is information for which the writer provides a source (and includes a citation). Documented evidence has therefore, been “documented” or “written down” previously and recorded for the public.

Types of documented evidence may include facts, statistics, expert opinions, examples, or anecdotes that the reader can locate in the original publication based on the citation and reference.

  • Nearly 98% of UW students bring a laptop or other device to class (Pierce, 2013, p. 1).
  • The UW-Madison will offer free tuition to transfer students who are the first in their families to attend college (Savidge, 2017, p. 1).
  • Note: If you are writing an essay about social media use among college students, it would be fairly easy to look at the percent (the number of) students who have Facebook or Instagram accounts. You could include these numbers, along with a citation and reference, in your essay as documented evidence.

Undocumented

Undocumented evidence may include general knowledge that most people accept to be true. What constitutes such shared knowledge may differ depending on the audience, but a good way to think about this is to ask yourself whether or not it is likely that most people will know what you are writing about without having to look up the information.

  • Teenagers feel pressure to fit in with those around them.
  • In the United States, cars drive on the right side of the road.
  • It is a simple fact that the earth travels around the sun; we all know and accept this as a truth, and it’s unnecessary to include a citation.
  • However, such an assertion could further be supplemented (and strengthened) with documented evidence such as which particular accounts are most common and what percent of students have them. In this way, documented and undocumented evidence can work together.
  • Another rough guideline is that if you can easily locate the information in five sources, it might be considered undocumented. Check with your instructor if you are unsure whether evidence is undocumented.

4 Types of evidence: Support your writing with a variety of evidence

Look at the types of evidence below and their examples. Which are most appropriate for academic writing?

Key Takeaways

  • Strive to use documented evidence in your essay.
  • If you are unsure whether evidence is documented or undocumented, ask your instructor.
  • Use a variety of types of evidence and perspectives to make your essay more credible.

Knowledge Check: Revisit this exercise on Common Knowledge

Academic Writing I Copyright © by UW-Madison ESL Program is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License , except where otherwise noted.

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7: Identifying Thesis Statements, Claims, and Evidence

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Learning Objectives

This chapter teaches you how to identify the elements of argumentative writing: a thesis statement, claims, and evidence.

Thesis Statements, Claims, and Evidence

Introduction.

The three important parts of an argumentative essay are:

  • A thesis statement is a sentence, usually in the first paragraph of an article, that expresses the article’s main point. It is not a fact; it’s a statement that you could disagree with. Therefore, the author has to convince you that the statement is correct.
  • Claims are statements that support the thesis statement, but like the thesis statement, are not facts. Because a claim is not a fact, it requires supporting evidence.
  • Evidence is factual information that shows a claim is true. Usually, writers have to conduct their own research to find evidence that supports their ideas. The evidence may include statistical (numerical) information, the opinions of experts, studies, personal experience, scholarly articles, or reports.

Each paragraph in the article is numbered at the beginning of the first sentence.

Paragraphs 1-7

Identifying the Thesis Statement. Paragraph 2 ends with this thesis statement: “People’s prior convictions should not be held against them in their pursuit of higher learning.” It is a thesis statement for three reasons:

  • It is the article’s main argument.
  • It is not a fact. Someone could think that peoples’ prior convictions should affect their access to higher education.
  • It requires evidence to show that it is true.

Finding Claims. A claim is statement that supports a thesis statement. Like a thesis, it is not a fact so it needs to be supported by evidence.

You have already identified the article’s thesis statement: “People’s prior convictions should not be held against them in their pursuit of higher learning.”

Like the thesis, a claim be an idea that the author believes to be true, but others may not agree. For this reason, a claim needs support.

  • Question 1. Can you find a claim in paragraph 3? Look for a statement that might be true, but needs to be supported by evidence.

Finding Evidence.

Paragraphs 5-7 offer one type of evidence to support the claim you identified in the last question. Reread paragraphs 5-7.

  • Question 2. Which word best describes the kind of evidence included in those paragraphs: A report, a study, personal experience of the author, statistics, or the opinion of an expert?

Paragraphs 8-10

Finding Claims

Paragraph 8 makes two claims:

  • “The United States needs to have more of this transformative power of education.”
  • “The country [the United States] incarcerates more people and at a higher rate than any other nation in the world.”

Finding Evidence

Paragraphs 8 and 9 include these statistics as evidence:

  • “The U.S. accounts for less than 5 percent of the world population but nearly 25 percent of the incarcerated population around the globe.”
  • “Roughly 2.2 million people in the United States are essentially locked away in cages. About 1 in 5 of those people are locked up for drug offenses.”

Question 3. Does this evidence support claim 1 from paragraph 8 (about the transformative power of education) or claim 2 (about the U.S.’s high incarceration rate)?

Question 4. Which word best describes this kind of evidence: A report, a study, personal experience of the author, statistics, or the opinion of an expert?

Paragraphs 11-13

Remember that in paragraph 2, Andrisse writes that:

  • “People’s prior convictions should not be held against them in their pursuit of higher learning.” (Thesis statement)
  • “More must be done to remove the various barriers that exist between formerly incarcerated individuals such as myself and higher education.” (Claim)

Now, review paragraphs 11-13 (Early life of crime). In these paragraphs, Andrisse shares more of his personal story.

Question 5. Do you think his personal story is evidence for statement 1 above, statement 2, both, or neither one?

Question 6. Is yes, which one(s)?

Question 7. Do you think his personal story is good evidence? Does it persuade you to agree with him?

Paragraphs 14-16

Listed below are some claims that Andrisse makes in paragraph 14. Below each claim, please write the supporting evidence from paragraphs 15 and 16. If you can’t find any evidence, write “none.”

Claim: The more education a person has, the higher their income.

Claim: Similarly, the more education a person has, the less likely they are to return to prison.

Paragraphs 17-19

Evaluating Evidence

In these paragraphs, Andrisse returns to his personal story. He explains how his father’s illness inspired him to become a doctor and shares that he was accepted to only one of six biomedical graduate programs.

Do you think that this part of Andrisse’s story serves as evidence (support) for any claims that you’ve identified so far? Or does it support his general thesis that “people’s prior convictions should not be held against them in pursuit of higher learning?” Please explain your answer.

Paragraphs 20-23

Andrisse uses his personal experience to repeat a claim he makes in paragraph 3, that “more must be done to remove the various barriers that exist between formerly incarcerated individuals such as myself and higher education.”

To support this statement, he has to show that barriers exist. One barrier he identifies is the cost of college. He then explains the advantages of offering Pell grants to incarcerated people.

What evidence in paragraphs 21-23 support his claim about the success of Pell grants?

Paragraphs 24-28 (Remove questions about drug crimes from federal aid forms)

In this section, Andrisse argues that federal aid forms should not ask students about prior drug convictions. To support that claim, he includes a statistic about students who had to answer a similar question on their college application.

What statistic does he include?

In paragraph 25, he assumes that if a question about drug convictions discourages students from applying to college, it will probably also discourage them from applying for federal aid.

What do you think about this assumption? Do you think it’s reasonable or do you think Andrisse needs stronger evidence to show that federal aid forms should not ask students about prior drug convictions?

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Narrative: I Went From Prison to Professor

12 Identifying Thesis Statements, Claims, and Evidence: Prison to Professor

In this chapter, you will practice identifying three important parts of an argument essay by analyzing the essay “I went from Prison to Professor” by Stanley Andrisse.

Identifying Thesis Statements, Claims, and Evidence

The argument essay.

The three important parts of an argument are:

  • A thesis statement is a sentence, usually in the first paragraph of an article, that expresses the article’s main point. It is not a fact; it’s a statement that you could disagree with.  Therefore, the author has to convince you that the statement is correct.
  • Claims are statements that support the thesis statement, but like the thesis statement,  are not facts.  Because a claim is not a fact, it requires supporting evidence.
  • Evidence is factual information that shows a claim is true.  Usually, writers have to conduct their own research to find evidence that supports their ideas.  The evidence may include statistical (numerical) information, the opinions of experts, studies, personal experience, scholarly articles, or reports.

Each paragraph in the article is numbered at the beginning of the first sentence.

Paragraphs 1-7

Identifying the Thesis Statement. Paragraph 2 ends with this thesis statement:  “People’s prior convictions should not be held against them in their pursuit of higher learning.”  It is a thesis statement for three reasons:

  • It is the article’s main argument.
  • It is not a fact. Someone could think that peoples’ prior convictions should affect their access to higher education.
  • It requires evidence to show that it is true.

Finding Claims.  A claim is statement that supports a thesis statement.  Like a thesis, it is not a fact so it needs to be supported by evidence.

You have already identified the article’s thesis statement: “People’s prior convictions should not be held against them in their pursuit of higher learning.”

Like the thesis, a claim be an idea that the author believes to be true, but others may not agree.  For this reason, a claim needs support.

  • Question 1.  Can you find a claim in paragraph 3? Look for a statement that might be true, but needs to be supported by evidence.

Finding Evidence. 

Paragraphs 5-7 offer one type of evidence to support the claim you identified in the last question.  Reread paragraphs 5-7.

  • Question 2.  Which word best describes the kind of evidence included in those paragraphs:  A report, a study, personal experience of the author, statistics, or the opinion of an expert?

Paragraphs 8-10

Finding Claims

Paragraph 8 makes two claims:

  • “The United States needs to have more of this transformative power of education.”
  • “The country [the United States] incarcerates more people and at a higher rate than any other nation in the world.”

Finding Evidence

Paragraphs 8 and 9 include these statistics as evidence:

  • “The U.S. accounts for less than 5 percent of the world population but nearly 25 percent of the incarcerated population around the globe.”
  • “Roughly 2.2 million people in the United States are essentially locked away in cages. About 1 in 5 of those people are locked up for drug offenses.”

Question 3. Does this evidence support claim 1 from paragraph 8 (about the transformative power of education) or claim 2 (about the U.S.’s high incarceration rate)?

Question 4. Which word best describes this kind of evidence:  A report, a study, personal experience of the author, statistics, or the opinion of an expert?

Paragraphs 11-13

Remember that in paragraph 2, Andrisse writes that:

  • “People’s prior convictions should not be held against them in their pursuit of higher learning.” (Thesis statement)
  • “More must be done to remove the various barriers that exist between formerly incarcerated individuals such as myself and higher education.” (Claim)

Now, review paragraphs 11-13 (Early life of crime). In these paragraphs, Andrisse shares more of his personal story.

Question 5. Do you think his personal story is evidence for statement 1 above, statement 2, both, or neither one?

Question 6. Is yes, which one(s)?

Question 7. Do you think his personal story is good evidence?  Does it persuade you to agree with him?

Paragraphs 14-16

Listed below are some claims that Andrisse makes in paragraph 14.  Below each claim, please write the supporting evidence from paragraphs 15 and 16.  If you can’t find any evidence,  write “none.”

Claim:  The more education a person has, the higher their income.

Claim: Similarly, the more education a person has, the less likely they are to return to prison.

Paragraphs 17-19

Evaluating Evidence

In these paragraphs, Andrisse returns to his personal story. He explains how his father’s illness inspired him to become a doctor and shares that he was accepted to only one of six biomedical graduate programs.

Do you think that this part of Andrisse’s story serves as evidence (support) for any claims that you’ve identified so far?   Or does it support his general thesis that “people’s prior convictions should not be held against them in pursuit of higher learning?” Please explain your answer.

Paragraphs 20-23

Andrisse uses his personal experience to repeat a claim he makes in paragraph 3, that “more must be done to remove the various barriers that exist between formerly incarcerated individuals such as myself and higher education.”

To support this statement, he has to show that barriers exist.  One barrier he identifies is the cost of college. He then explains the advantages of offering Pell grants to incarcerated people.

What evidence in paragraphs 21-23 support his claim about the success of Pell grants?

Paragraphs 24-28

In this section, Andrisse argues that federal aid forms should not ask students about prior drug convictions.  To support that claim, he includes a statistic about students who had to answer a similar question on their college application.

What statistic does he include?

In paragraph 25, he assumes that if a question about drug convictions discourages students from applying to college, it will probably also discourage them from applying for federal aid.

What do you think about this assumption?   Do you think it’s reasonable or do you think Andrisse needs stronger evidence to show that federal aid forms should not ask students about prior drug convictions?

Supporting English Language Learners in First-Year College Composition Copyright © by Breana Bayraktar is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License , except where otherwise noted.

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Module 9: The New Deal (1932-1941)

Supporting claims with evidence, learning objectives.

  • Support historical arguments with evidence from sources

On the previous page, we learned how to identify and create a claim and a thesis statement for a historical argument. When authoring a historical research paper, the next steps involve supporting your thesis statement by synthesizing your research.

Supporting Your Argument

Remember, an argument is only an argument if you can give reasons why you think it’s true. These reasons  support the thesis claim, which sums up the point of the argument. The supports will be found in the paragraphs of the essay. To locate them, we can look for the “key sentences” of the paragraph. A key sentence sometimes called a “topic sentence,” will establish the paragraph’s main point. It also helps connect the paragraph to the overall argument.

Let’s look at an example. Here is more of the example essay we began on the previous page, which argues that, yes, New Deal spending and programs succeeded in restoring American capitalism during the Great Depression, and the government should have spent more money to help the New Deal succeed.

Sample Essay #2

Note that the thesis statement is highlighted in blue, and some supporting reasons connected to their claim are detailed in the second paragraph. The end of the second paragraph concludes with a key sentence that connects the paragraph to the argument.

When President Franklin Delano Roosevelt gave his inaugural address on March 4, 1933, America was in the midst of financial collapse. Banking holidays closed banks in 28 states, and investors traded their dollars for gold to have tangible wealth. The president reassured Americans, “This great Nation will endure as it has endured and will revive and will prosper.” He listed three goals to shore up capitalism through his New Deal: banking regulation, laws to curb speculation, and the establishment of a sound currency basis. Roosevelt shored up the financial sector through regulation to restore the public trust that mismanaged banks, and financial speculators had destroyed. His New Deal gave the federal government regulatory responsibility to smooth economic downturns. Over the next eight years, the New Deal’s economic practices and spending helped create recovery and restore capitalism.

By the time Roosevelt was inaugurated in the spring of 1933, almost 5,500 banks had failed, and, in many cases, their customers had lost their deposits and life savings. Therefore, Roosevelt’s first task was to restore confidence in the banking system, so on March 6, he declared a four-day national bank holiday. While banks were closed, Congress quickly approved the Emergency Banking Relief Act to audit the financial viability of banks and provide emergency currency. When banks reopened, the federal government guaranteed that banks were safe, and deposits outnumbered withdrawals. The following month, Roosevelt banned the use of gold for foreign exchange and increased its price to increase the U.S. gold supply and thereby causing inflation in a depressed economy suffering deflation. By June 1933, legislation required full disclosure for stock sales, and the Glass-Steagall Act separated consumer and investment banking to prevent bank speculation with consumer deposits. Congress created the Securities and Exchange Commission to regulate the stock market. These measures restored Americans’ faith in the financial system.

Synthesizing Evidence

At this point in the writing process, you have a claim and a thesis statement. You can now turn to synthesizing your evidence and presenting the historical context. Turn to your research and pull out the evidence that supports your claim. Cite your sources as you piece together the evidence. To do that, you’ll pull in information from your sources by paraphrasing, summarizing, or quoting from elsewhere (remember to use quotes sparingly!). When you are ready to write the body paragraphs of your essay, remember to:

  • Present your evidence in a clear and compelling sequence.   Situate your evidence in an order that takes your reader step-by-step through your argument. Make sure that the examples you’ve chosen address your thesis and that they aren’t broad generalizations.
  • Contextualize your evidence. Do you situate your evidence and research into the historical context? Don’t drop in quotes or summaries from elsewhere without explaining them and connecting them to your claim.

Link to learning: Essay outline

You can see an outline of an essay about the New Deal on page 3 of this writing guide .

Let’s take a look at another example. During the Great Recession of 2008 and 2009, a U.S. Senate Committee on Banking, Housing, and Urban Affairs held a meeting with expert economists and historians to understand better what actions the government took to fight the Great Depression and what relevant lessons to the recession. One of the attendees was historian Allan Winkler. Read a passage from his prepared statement, keeping an eye out for how he both makes claims about the New Deal and uses evidence to support his arguments.

The New Deal: Accomplishments and Failures

Overall, what did the New Deal do?

First, it addressed the unemployed. A Federal Emergency Relief Administration provided direct assistance to the states to pass it on to those out of work. The following winter, a work-relief program provided jobs in the brief period it existed. Then, in 1935, FDR created the Works Progress Administration, which paid all kinds of people, including artists, actors, and authors, to work and build new schools, bridges, and other structures around the country. It was expensive, to be sure, but it made a substantial economic and emotional difference to the people it assisted.

Second, the New Deal sought to do something to promote recovery. The National Recovery Administration attempted to check unbridled competition, driving prices down and contributing to a deflationary spiral. It tried to stabilize wages, prices, and working hours through detailed codes of fair competition. Meanwhile, the Agricultural Adjustment Administration sought to stabilize prices in the farm sector by paying farmers to produce less.

Finally, throughout the New Deal, the administration addressed questions of structural reform. The Wagner Act, which created the National Labor Relations Board in 1935, was a monumental step forward in giving workers the right to bargain collectively and to arrange for fair and open elections to determine a bargain agent if laborers so chose. The Social Security Act the same year was, in many ways, one of the most important New Deal measures in providing security for those reaching old age with a self-supporting plan for retirement pensions. But there were other reform measures as well. The Securities and Exchange Commission and Federal Deposit Insurance Corporation were new. And the Glass-Steagall Act, only recently repealed with frightful consequences, separated commercial and investment banking.

Identifying Claims

Before we explore the supporting evidence, what claims is the author making about the New Deal?

Gathering Supporting Evidence

The speaker claims that the New Deal addressed unemployment. What supporting evidence does he use to back up that claim?

The speaker cites the direct assistance that the Federal Emergency Relief Administration provided to states as one piece of supporting evidence for the claim that the New Deal addressed unemployment. Notice, too, that the speaker offers many pieces of supporting evidence to argue for his claim, not just one piece of supporting evidence.

In the section above, Dr. Winkler highlighted the good brought about by the New Deal. That was just one section of his larger argument. His thesis statement was actually this:

  • [The New Deal] was a multi-faceted attempt to deal with different elements of the catastrophe in ways that sometimes seemed haphazard and occasionally contradictory. On balance, though, the New Deal enjoyed some notable accomplishments, even if it failed to promote full-scale economic recovery.

This tends to be the general sentiment of most historians today, who argue that the New Deal programs made an impact but that government spending accelerated by World War II ended the Great Depression.

Putting It Together

Now that you’ve learned about creating a thesis statement and supporting your claims with evidence, you are well on completing a research assignment or writing an essay. It’s always a good idea to put your argument and supporting details together in an outline before you begin. See the example essay outline to see a standard structure for argumentative essays.

Example Argumentative Essay Outline

  • provides background information on the topic
  • states of your position on the topic (thesis)
  • summarizes arguments 
  • Topic sentence outlining the first claim
  • Sentences giving explanations and providing evidence to support the topic sentence
  • Concluding sentence – link to next paragraph
  • Topic sentence outlining the second claim
  • Sentences giving explanations and providing evidence to back the topic sentence
  • Topic sentence outlining any possible counterarguments
  • Provide evidence to refute counterarguments
  • Summary of the main points of the body
  • Restatement of the position
  • Bibliography / Works Cited

Activity #2

Picking one of the thesis statements about your historical figure from the previous activity, create an essay outline supporting your thesis statement using supporting evidence. It can be a simplified version of the outline above, like this:

  • Supporting evidence for claim:

Use the space below to jot down your ideas.

Primary source:  a first-hand or contemporary source of an event or topic.

Secondary source: relates or discusses information originally presented elsewhere. A secondary source gives information about a primary source and typically involves generalization, analysis, interpretation, and evaluation of the original information.

Thesis statement : a statement of the topic of the piece of writing and the angle the writer has on that topic

  • Historical Hack: Crafting Historical Arguments.. Authored by : Kaitlyn Connell for Lumen Learning. Provided by : Lumen Learning. License : CC BY: Attribution
  • Historical Hack: Crafting Historical Arguments.. Authored by : Yasmin Forbes for Lumen Learning. Provided by : Lumen Learning. License : CC BY: Attribution
  • Common essay structures. Provided by : Lumen Learning. Located at : https://courses.lumenlearning.com/englishcomp1/chapter/common-essay-structures/ . License : CC BY-SA: Attribution-ShareAlike
  • Allan M. Winkler Prepared Statement given on March 31, 2009. Authored by : Allan M. Winkler. Provided by : U.S. Senate. Located at : https://www.govinfo.gov/content/pkg/CHRG-111shrg53161/pdf/CHRG-111shrg53161.pd . Project : Committee on Banking, Housing, and Urban Affairs. License : Public Domain: No Known Copyright

11trees Guide

  • Improving Your Grades
  • Article Use (a, an, the…)
  • Apostrophes
  • Run-On Sentences
  • Parts of Speech
  • Pronunciation
  • Types of Writing
  • Choosing the Right Words
  • How Can I Make My Sentences Clearer?
  • Varying Sentence Length
  • Varying Sentence Structure
  • Word Form: Comparative and Superlative Adjectives
  • Use SEMICOLONS (;) For Emphasis
  • Sentence Structure: For and Since
  • Sentence Structure: Order of adjectives
  • Preposition Problems: Prepositions of Time
  • Sentence Structure: Tag Questions
  • Word Choice: Personal Pronouns
  • Using Evidence
  • Research & Documentation
  • Cover Letters
  • The Secret to Eye Contact
  • Three Keys for Better Slide Design
  • Know your audience – presentation skills
  • Lying With Charts

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ANALYZE Evidence to Support Your Thesis

Posted by 11trees | Evidence

Analyzing evidence is the key to competent high school and college writing.

You cannot throw down a quote, or some facts, or a graph, and expect the reader to make all the connections to your main point/thesis.

Similarly, you can’t spend all your time sharing information that is obvious to your reader and that connects to your thesis in an obvious way.

Student example:

Thoreau kept journals throughout his life.  His journals included personal observations, scientific observations, and prewriting for his papers.  He believed that writing cleared his mind.  He was the one who majorly contributed to journal writing.  Many students are now inspired to keep a journal, and it is all thanks to Thoreau (Pinkston).

The student is writing about Thoreau’s impact on modern life, and (admirably) bypassing everyone’s general sense of Thoreau and going for a lesser-known point: that Thoreau has influenced generations of journal-writers, whether they know it or not.

But the student claims that “[Thoreau] majorly contributed to journal writing” and that “many students are now inspired to keep a journal.” The student wants to connect Thoreau to the students’ interest in journal writing – to argue that Thoreau  caused  this interest in journal writing.

But there are two large problems:

  • We don’t have any evidence to support that students even  do  like to journal – and we might suspect such activities have gone down over the last couple of generations.
  • We don’t have any evidence or analysis to show that all that student journaling (if it even happens) is thanks to Thoreau.

It’s the analysis that is missing – analysis of the evidence they have already gathered, and analysis of evidence that is yet to be gathered to support the point.

For instance, it would be relatively easy to argue and show that the growth of Facebook and MySpace is a form of journaling that Thoreau might understand. Some analysis of typical Facebook pages and a comparison to Thoreau’s journals might establish this, along with numbers on the phenomenal growth in the use of these sites.

If a Facebook page  does  connect to the kinds of journaling Thoreau appreciated, then the connection between the two is an easier one. But probably this wouldn’t be true. Most people don’t use Facebook as a canvas for developing philosophical frameworks. So more analysis is required – a greater understanding of Thoreau and his writing, and deeper thinking about Facebook and its equivalents.

The above paragraph is a great first or second draft, but it doesn’t have the thinking and analysis required of competent college or even high school writing.

Learn More…

Read a short, complex analysis  of the arguments surrounding Sonia Sotomayor’s (nominated to the Supreme Court by President Obama) “hope that a wise Latina woman with the richness of her experiences would more often than not reach a better conclusion than a white male who hasn’t lived that life.” Is she a racist? Can anyone do more than a knee-jerk reaction? From  The New York Times.

Read more about primary research on Purdue University’s  O nline  W riting  L ab website.

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  • Verbs (ESL)
  • Auxiliary Verbs
  • Prepositions
  • Sentence Structure
  • Word Choice
  • Coherence and Cohesion
  • Information Literacy
  • Adjusting Expectations
  • Audience, Purpose, and Tone
  • Writing Advice
  • Slide Design
  • Non-verbal Communication
  • Writing Assignment Ideas

IMAGES

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  3. 5 Types of Thesis Statements

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  4. Use Evidence and Analysis to Support a Thesis

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  5. How to Introduce Evidence in an Essay: 14 Steps (with Pictures)

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VIDEO

  1. Understanding Evidence in Academic Writing

  2. Citing Evidence to Support a General Statement

  3. Three Minute Thesis (3MT) 2011

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  6. Mastering Debates: Forming Arguments and Counterarguments

COMMENTS

  1. Developing a Thesis Statement

    A thesis statement . . . Makes an argumentative assertion about a topic; it states the conclusions that you have reached about your topic. Makes a promise to the reader about the scope, purpose, and direction of your paper. Is focused and specific enough to be "proven" within the boundaries of your paper. Is generally located near the end ...

  2. Using Evidence

    The chief claim in an analytical essay is called the thesis. A thesis provides the controlling idea for a paper and should be original (that is, not completely obvious), assertive, and arguable. A strong thesis also requires solid evidence to support and develop it because without evidence, a claim is merely an unsubstantiated idea or opinion.

  3. PDF College Writing: Supporting Your Thesis

    Supporting Your Thesis . You've written an arguable thesis. Now you've got to give some evidence to support your claim. Keep in mind our discussion in "Formulating an Arguable Thesis," and support your thesis with facts rather than with beliefs. Think of your paper as a court case —your job is to support your thesis with solid facts

  4. How to Write a Thesis Statement

    Step 2: Write your initial answer. After some initial research, you can formulate a tentative answer to this question. At this stage it can be simple, and it should guide the research process and writing process. The internet has had more of a positive than a negative effect on education.

  5. Thesis

    Your thesis is the central claim in your essay—your main insight or idea about your source or topic. Your thesis should appear early in an academic essay, followed by a logically constructed argument that supports this central claim. ... Broad thesis (arguable, but difficult to support with evidence) Michael Sandel's arguments about genetic ...

  6. 8.4: Creating and Revising a Thesis Statement

    To revise the thesis, the relationship between the two ideas needs to become clearer. STRONGER THESIS: 4. A strong thesis statement is specific: A thesis statement should show exactly what your paper will be about and the argument should be narrow enough to be concretely proven. WEAK THESIS: Slavery in the United States damaged many lives.

  7. Proving the Thesis

    The information presented to prove the thesis should be relevant, reliable, credible, and sufficient. relevant evidence - evidence must be directly and clearly related to proving the thesis. reliable evidence - evidence must be consistent and accurate; the same circumstances must have the same result. reliable narrator - there is general ...

  8. Guides: Write Clearly: Using Evidence Effectively: Start Here

    The best way to do this is to research the topic, develop a thesis statement, hypothesis, or claim and then use evidence to support this claim. Evidence is the facts, examples, or sources used to support a claim. In the sciences, this might be data retrieved from an experiment or a scientific journal article. In the humanities, it may be a ...

  9. What is a Thesis Statement: Writing Guide with Examples

    However, the main difference is that, while the thesis statements for argumentative and expository essays state facts, the thesis statements for persuasive essays state clear opinions. Still, the format is the same, and the opinions are often treated like facts, including conclusive language and citing evidence to support your claims.

  10. Thesis Statements

    A thesis statement: tells the reader how you will interpret the significance of the subject matter under discussion. is a road map for the paper; in other words, it tells the reader what to expect from the rest of the paper. directly answers the question asked of you. A thesis is an interpretation of a question or subject, not the subject itself.

  11. 8.3 Types of Evidence in Academic Arguments

    Evidence is not simply "quotes." Evidence is what a writer uses to support or defend his or her argument, and only valid and credible evidence is enough to make an argument strong. For a review of what evidence means in terms of developing body paragraphs within an essay, you can refer back to Section 4.3.

  12. PDF Argumentative Writing and Using Evidence

    A claim by itself is not an argumentative thesis—you need to put forth your reasons as well. You can think of your paper as a house: the thesis statement is the shape of the house, the arguments are its structure, and the evidence is the building materials. Be careful of what you use to support your claims, and choose your evidence purposefully.

  13. Evidence

    Books, journals, websites, newspapers, magazines, and documentary films are some of the most common sources of evidence for academic writing. Our handout on evaluating print sources will help you choose your print sources wisely, and the library has a tutorial on evaluating both print sources and websites. A librarian can help you find sources ...

  14. 3.3: Strong paragraphs start with good evidence

    Support your thesis with evidence AND analysis. A paragraph is a group of sentences that present, develop, and support a single idea. That's it. There's no prescribed length or number of sentences. In academic writing, body paragraphs need to work together with the thesis to support your main point. If your thesis states where your essay ...

  15. Supporting a Thesis

    A thesis gives an essay a purpose, which is to present details that support the thesis. To create supporting details, you can use personal observations and experiences, facts, opinions, statistics, and examples. When choosing details for your essay, exclude any that do not support your thesis, make sure you use only reliable sources, double ...

  16. Creating a Thesis Statement, Thesis Statement Tips

    Using paper checkers responsibly. 2. Your thesis statement should be specific—it should cover only what you will discuss in your paper and should be supported with specific evidence. 3. The thesis statement usually appears at the end of the first paragraph of a paper. 4. Your topic may change as you write, so you may need to revise your ...

  17. What is a thesis

    A thesis is an in-depth research study that identifies a particular topic of inquiry and presents a clear argument or perspective about that topic using evidence and logic. Writing a thesis showcases your ability of critical thinking, gathering evidence, and making a compelling argument. Integral to these competencies is thorough research ...

  18. How to Write an Argumentative Essay

    Make a claim. Provide the grounds (evidence) for the claim. Explain the warrant (how the grounds support the claim) Discuss possible rebuttals to the claim, identifying the limits of the argument and showing that you have considered alternative perspectives. The Toulmin model is a common approach in academic essays.

  19. Evidence Selection

    The evidence should be directly related to your supporting points; it must support your thesis. A variety of types of evidence can make your writing more credible. 1 Easy to understand. If you find an article, but cannot understand the information in the article, it will be difficult or even impossible to use the evidence.

  20. 7: Identifying Thesis Statements, Claims, and Evidence

    Therefore, the author has to convince you that the statement is correct. Claims are statements that support the thesis statement, but like the thesis statement, are not facts. Because a claim is not a fact, it requires supporting evidence. Evidence is factual information that shows a claim is true. Usually, writers have to conduct their own ...

  21. Identifying Thesis Statements, Claims, and Evidence

    Claims are statements that support the thesis statement, but like the thesis statement, are not facts. Because a claim is not a fact, it requires supporting evidence. ... Paragraphs 5-7 offer one type of evidence to support the claim you identified in the last question. Reread paragraphs 5-7. Question 2.

  22. Supporting Claims With Evidence

    These reasons support the thesis claim, which sums up the point of the argument. The supports will be found in the paragraphs of the essay. ... Sentences giving explanations and providing evidence to support the topic sentence; Concluding sentence - link to next paragraph; Paragraph 2 (or more) Topic sentence outlining the second claim;

  23. ANALYZE Evidence to Support Your Thesis

    Analyzing evidence is the key to competent high school and college writing. You cannot throw down a quote, or some facts, or a graph, and expect the reader to make all the connections to your main point/thesis. Similarly, you can't spend all your time sharing information that is obvious to your reader and that connects to your thesis in an ...

  24. From Evidence to Action: How Do We Establish Systems to Support

    Incorporate what we already know about the conditions to support use. Identify whether we can facilitate evidence use in existing systems. In one of the first blog posts in this series on evidence use, we discussed some of the research on the organizational conditions that support evidence use. The five key dimensions of ACF's evidence ...

  25. Credit risk prediction with and without weights of evidence using

    2.3.4. Support vector machines. Support Vector Machines (SVM) is a supervised learning technique used for classification and regression modelling. However, it is more commonly used in classification. The SVM algorithm is known to be robust, accurate and simple. A major advantage of the model is that it is not prone to over-fitting.