what is viva thesis

• PhD Viva Voces – A Complete Guide
• Doing a PhD
• A PhD viva involves defending your thesis in an oral examination with at least two examiners.
• The aim of a PhD viva is to confirm that the work is your own , that you have a deep understanding of your project and, overall, that you are a competent researcher .
• There are no standard durations, but they usually range from one to three hours, with most lasting approximately two hours .
• There are six outcomes of a PhD viva: (1) pass without corrections (2) pass subject to minor corrections, (3) pass subject to major corrections, (4) downgrade to MPhil with no amendments, (5) downgrade to MPhil subject to amendments, (6) immediate fail.
• Almost all students who sit their viva pass it, with the most common outcome being ‘(2) – pass subject to minor corrections’.

What Is a PhD Viva?

A viva voce , more commonly referred to as ‘viva’, is an oral examination conducted at the end of your PhD and is essentially the final hurdle on the path to a doctorate. It is the period in which a student’s knowledge and work are evaluated by independent examiners.

In order to assess the student and their work around their research question, a viva sets out to determine:

• you understand the ideas and theories that you have put forward,
• you can answer questions about elements of your work that the examiners have questions about,
• you understand the broader research in your field and how your work contributes to this,
• you are aware of the limitations of your work and understand how it can be developed further,
• your work makes an original contribution, is your own and has not been plagiarised.

Note: A viva is a compulsory procedure for all PhD students, with the only exception being when a PhD is obtained through publication as opposed to the conventional route of study.

Who Will Attend a Viva?

In the UK, at least two examiners must take part in all vivas. Although you could have more than two examiners, most will not in an attempt to facilitate a smoother questioning process.

One of the two examiners will be internal, i.e. from your university, and the other will be external, i.e. from another university. Regardless, both will be knowledgeable in your research field and have read your thesis beforehand.

In addition to your two examiners, two other people may be present. The first is a chairperson. This is an individual who will be responsible for monitoring the interview and for ensuring proper conduct is followed at all times. The need for an external chairperson will vary between universities, as one of the examiners can also take on this role. The second is your supervisor, whose attendance is decided upon by you in agreement with your examiners. If your supervisor attends, they are prohibited from asking questions or from influencing the outcome of the viva.

To avoid any misunderstandings, we have summarised the above in a table:

Note: In some countries, such as in the United States, a viva is known as a ‘PhD defense’ and is performed publicly in front of a panel or board of examiners and an open audience. In these situations, the student presents their work in the form of a lecture and then faces questions from the examiners and audience which almost acts as a critical appraisal.

How Long Does a Viva Last?

Since all universities have different guidelines , and since all PhDs are unique, there are no standard durations. Typically, however, the duration ranges from one to three hours, with most lasting approximately two hours.

Your examiners will also influence the duration of your viva as some will favour a lengthy discussion, while others may not. Usually, your university will consult your examiners in advance and notify you of the likely duration closer to the day of your viva.

What Happens During a Viva?

Regardless of the subject area, all PhD vivas follow the same examination process format as below.

Introductions

You will introduce yourselves to each other, with the internal examiner normally introducing the external examiner. If an external chairperson is present, they too are introduced; otherwise, this role will be assumed by one of the examiners.

Procedure Explained

After the introductions, the appointed chair will explain the viva process. Although it should already be known to everyone, it will be repeated to ensure the viva remains on track during the forthcoming discussion.

Warm-Up Questions

The examiners will then begin the questioning process. This usually starts with a few simple opening questions, such as asking you to summarise your PhD thesis and what motivated you to carry out the research project.

In-Depth Questions

The viva questions will then naturally increase in difficulty as the examiners go further into the details of your thesis. These may include questions such as “What was the most critical decision you made when determining your research methodology ?”, “Do your findings agree with the current published work?” and “How do your findings impact existing theories or literature? ”. In addition to asking open-ended questions, they will also ask specific questions about the methodology, results and analysis on which your thesis is based.

Closing the Viva

Once the examiners are satisfied that they have thoroughly evaluated your knowledge and thesis, they will invite you to ask any questions you may have, and then bring the oral examination to a close.

What Happens After the Viva?

Once your viva has officially ended, your examiners will ask you to leave the room so that they can discuss your performance. Once a mutual agreement has been reached, which can take anywhere from 10 minutes to an hour, you will be invited back inside and informed of your outcome.

PhD Viva Outcomes

There are six possible outcomes to a viva:

• Immediate award of degree: A rare recommendation – congratulations, you are one of the few people who completely satisfied your examiners the first time around. You do not have to do anything further at this point.
• Minor amendments required: The most common recommendation – you obtain a pass on the condition that you make a number of minor amendments to your thesis, such as clarifying certain points and correcting grammatical errors. The time you have to make these changes depends on the number of them, but is usually one to six months.
• Major amendments required: A somewhat uncommon recommendation – you are requested to make major amendments to your thesis, ranging from further research to collecting more data or rewriting entire sections. Again, the time you have to complete this will depend on the number of changes required, but will usually be six months to one year. You will be awarded your degree once your amended thesis has been reviewed and accepted.
• Immediate award of MPhil: An uncommon recommendation – your examiners believe your thesis does not meet the standard for a doctoral degree but meets the standard for an MPhil (Master of Philosophy), a lower Master’s degree.
• Amendments required for MPhil: A rare recommendation – your examiners believe your thesis does not meet the standard for a doctoral degree, but with several amendments will meet the standard for an MPhil.
• Immediate fail: A very rare recommendation – you are given an immediate fail without the ability to resubmit and without entitlement to an MPhil.

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What Is the Pass Rate for Vivas?

Based on an  analysis of 26,076 PhD students  who took their viva exam between 2006 and 2017, the PhD viva pass rate in the UK is 96%; of those who passed, about 80% were required to make minor amendments to their thesis. The reason for this high pass rate is that supervisors will only put their students forward for a viva once they confidently believe they are ready for it. As a result, most candidates who sit a viva are already well-versed in their PhD topic before they even start preparing for the exam.

How Do I Arrange a Viva?

Your viva will be arranged either by the examiners or by the chairperson. The viva will be arranged at least one to two months after you have submitted your thesis and will arrange a viva date and venue that is suitable for all participants.

Can I Choose My Examiners?

At most universities, you and your supervisor will choose the internal and external examiners yourselves. This is because the examiners must have extensive knowledge of the thesis topic in order to be able to examine you and, as the author of the thesis in question, who else could better determine who they might be than you and your supervisor. The internal examiner is usually quite easy to find given they will be from your institution, but the external examiner may end up being your second or third preference depending on availability.

Can I Take Notes Into a Viva?

A viva is about testing your competence, not your memory. As such, you are allowed to take notes and other supporting material in with you. However, keep in mind that your examiners will not be overly impressed if you constantly have to refer to your notes to answer each question. Because of this, many students prefer to take an annotated copy of their thesis, with important points already highlighted and key chapters marked with post-it notes.

In addition to an annotated copy of a thesis, some students also take:

• a list of questions they would like to ask the examiners,
• notes that were created during their preparation,
• a list of minor corrections they have already identified from their viva prep work.

How Do I Prepare for a PhD Viva?

There are several ways to prepare for a PhD viva, one of the most effective being a mock viva voce examination . This allows you to familiarise yourself with the type of viva questions you will be asked and identify any weak areas you need to improve. They also give you the opportunity to practise without the pressure, giving you more time to think about your answers which will help to make sure that you know your thesis inside out. However, a mock viva exam is just one of many methods available to you – some of the other viva preparation methods can be found on our “ How to Prepare for a PhD Viva ” page.

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Viva examinations: guidance

This guidance explains the viva process, how to prepare, what will happen on the day and what the possible outcomes are.

This information is for postgraduate research students. It covers:

• before your viva
• preparing for your viva
• during your viva
• outcomes of the examination

Before your viva

Entry forms.

You must enter the exam via Portico about four months before you are ready to submit. You may not submit your thesis until you have entered for the examination and your examination may be delayed if you have not done this.  

Find out more about examination entry

Your supervisor is responsible for arranging the appointment of your examiners. This should be done at the same time as you complete your examination entry form, four months before you are due to submit your thesis. Examiners are appointed by UCL for their professional services as examiners with expert subject knowledge. A minimum of two examiners, one from outside UCL and (normally) one from UCL are appointed to co-examine all research degree candidates. The examiner nomination form can be found here .

Submit your thesis

Find out more about formatting, binding and submitting your thesis.

Collaborative research projects

If you are contributing to a collaborative research project you must include this information in the introduction to the thesis. You must clearly identify the demarcation between the research you are submitting for examination as an original contribution to knowledge and the work of your collaborators. 

Viva arrangements

Your supervisor (or nominee) will liaise with you and your examiners to arrange and confirm a mutually convenient time and place to hold the viva examination. The viva must not be arranged before the examiners are formally appointed by UCL. It may take place at UCL, or remotely. Your examiners should have your thesis at least six working weeks before the viva and you will receive an email once the thesis has been sent to the examiners. At this point, you will be able to record the viva via the ‘Research Student Administration’ section in Portico. A user guide is available with step-by-step instructions for submitting this information. Your viva should then take place within three months of the dispatch of the thesis to your examiners.

Download the viva notification user guide

Reasonable adjustments

If you or one of your examiners have a disability which UCL cannot accommodate, other reasonable arrangements can be made for the viva. You must make a request in writing when you complete the examination entry form to allow time for arrangements to be made. 

Preparing for your viva

We recommend that you re-read your thesis. Try to anticipate questions, comments and criticisms, and think how you would respond. Although you may not be able to anticipate actual questions to be asked by the examiners, this approach will encourage you to think actively about your work.   You should also refresh your memory of the relevant literature. Do not attempt to re-read every paper in the bibliography of your thesis; instead, re-read carefully some of the more recent key references. If you have left university after submitting your thesis you may be unaware of very recent work. Ask your supervisor a couple of weeks before the viva whether any work of direct relevance to your thesis has been published since you submitted your thesis.

You must not contact your examiners directly at any point leading up to the viva or afterwards.  All contact should be done by your supervisor or other relevant departmental staff member.  

A good way to prepare for your viva is to practice. Your supervisor should give you a mock viva, or arrange for this to be undertaken by a member of your upgrade panel.  

During your viva

A viva is an academic interview at which your examiners will be looking for an understanding of the subject matter of your thesis, an appreciation of its significance to established knowledge in the field, and an awareness of the breadth of the subject area. 

Your supervisor will be invited to attend your viva examination, unless you request otherwise; you must indicate this on your examination entry form. Your supervisor does not have the right to participate in the viva examination but may contribute if invited to do so by the examiners.  

The examiners will expect you to:

• show a critical analysis of your own work and of that of others
• appreciate the limitations of the methods employed and the results obtained by yourself and others
• understand how the broad conclusions of your thesis support, add to or conflict with previous work
• know the major concepts and recent developments in your subject

There is no formal procedure laid down for the conduct of the viva examination. Some examiners prefer to work through the thesis in the order in which it is written. Other examiners prefer to discuss topics. Very few examiners will perform a page by page criticism. You may be asked to prepare a presentation of your work in a suitable format.  

You are not expected to know your thesis by heart, but to refer to the appropriate page when the examiners wish to discuss a specific point. Please ensure that you bring to the viva examination a copy of your thesis paginated in the same way as the copies you have submitted to the Research Degree Examinations Office.

You should not simply answer 'yes' or 'no' to questions nor give a prepared exposition. Try to answer the question as it is put, remembering that you are engaged in an academic conversation.

Be prepared to justify your ideas and conclusions. If the examiners challenge your interpretation but you feel that your case is a good one, muster your arguments and be willing to present your case firmly but courteously. However, if the examiners have identified a genuine weakness, concede the point gracefully. Even if you feel the examiners are unreasonably critical do not become argumentative or allow the discussion to become heated. You can agree to differ and to reconsider the point. All participants in the viva must abide by UCL's Bullying and Harassment Policy . If you make any comments to your examiners which put them under moral pressure, for example alluding to what will happen if they fail you, or if you offer any incentive to your examiners to pass you, they must terminate the examination and report to the Chair of the Research Degrees Committee via Research Degrees in Student and Registry Services.

Outcome of the examination

The following are the three most often received results and the subsequent procedures.

We will email you with reports from your examiners, copied to your supervisor, instructing you to submit the following documents:

• the electronic copy of your thesis 
• thesis deposit agreement form (uploaded with the e-thesis)

We will award your degree once you have met the academic conditions, the Library have confirmed receipt of your e-thesis and the Deposit Agreement form, and you have cleared any outstanding fees. 

The electronic copy of your thesis and thesis deposit agreement form should be deposited to the Library via UCL's Research Publications Service. Please make sure that you remove, or blank out, all personal identifiers such as signatures, addresses and telephone numbers from the e-thesis. Any photographs that you have taken should not show identifiable individuals without their permission and any you have taken of children should mask their faces. If you have any queries regarding this aspect of the process, please contact the Library directly.

UCL no longer requires a printed copy of your final thesis. If you do wish to deposit a hard copy you can do so by sending it directly to the Cataloguing & Metadata department of Library Services by post, or in person at the Main Library help desk.  You will find more information about the process on the existing webpage for e-thesis submission. 

Find out more about depositing an electronic and printed copy of your thesis

Once you have submitted these, we will send an email containing the confirmation of award and your reports to your email address you have recorded on Portico. The degree certificate will follow approximately four months after the official award date.

In the case of an examination for specialist doctorates (including the EngD, EdD and MPhilStud), the award of the degree is also conditional upon students passing all taught elements of their programme of study. The modules should be entered on to Portico by the Department and confirmation these elements have been completed will be passed from the Examinations Department to Research Degrees.

Minor corrections

This is by far the most common result received from the examiners. 

We will email you with reports from your examiners, copied to your supervisor and Faculty Graduate Tutor. The deadline to submit your corrections officially starts from the date of this email, which will also indicate the name of the person designated to check your corrections. This deadline is for you to submit the corrections to the designated checker, and not to submit the final copy of your thesis.

Your examiners may have returned an annotated copy of your thesis to you and therefore you may already be aware of the work required. The designated checker should inform you of the format he/she expects to receive the corrections, although normally this will be in electronic format.

The designated checker should confirm the outcome of the examination within one month of receipt of the minor corrections to the thesis. This is usually done by sending an email directly to Research Degrees.

Once this has been received we will follow the procedure for a pass result.

Resubmission in a revised form

We will email you with reports from your examiners, copied to your supervisor, Departmental Graduate Tutor and Faculty Graduate Tutor. The 12 or 18 month deadline officially starts from the date of this email.

Unlike the outcome for minor corrections, where one person checks the amendments, the resubmission requires you to re-enter for the examination and submit two copies of your thesis for forwarding to the examiners. 

Your examiners may have returned an annotated copy of your thesis to you and therefore you may already be aware of the work required. 

Once you have completed the corrections, you will need to:

• submit a new exam entry form to Research Degrees at least two weeks prior to the expected submission of the thesis
• submit an electronic copy of your thesis to Research Degrees via the UCL Dropbox.  

Find out more about formatting, binding and submitting your thesis. Your supervisor will be emailed to confirm that the examiners are still willing to act and provide their current contact details. This is to avoid the thesis from being sent out incorrectly. We will then send an email to your supervisor and examiners reconfirming their appointment and send the thesis to them via the UCL Dropbox.

If the examiners have requested a second viva, your supervisor will arrange this. In these circumstances, the procedure will follow that of a typical research degree examination.

If a further viva is not required, your examiners are only required to submit a joint report. They cannot award another 18 month resubmission, but can allow minor corrections.

Once the reports are received we will follow the procedure for either the pass or minor corrections result.

Other results

If the result falls outside the above descriptions, we will email you detailing the procedure you will need to follow.

Related content

• Research degrees: examination entry
• Format, bind and submit your thesis
• Doctoral school

What is a viva? PhD viva, viva voce, viva process and more

If you are a PhD candidate and preparing to take the biggest step in your academic journey, you might be overwhelmed by the thought of your impending viva voce or the oral defense of your thesis.

Worry not, we are here to demystify the process and provide you with actionable tips to successfully navigate this crucial academic milestone.

Here, we will guide you through the viva process, shed light on the perspective of your examiners, and help you understand how to prepare for this pivotal examination. 

Whether you’re just beginning to wrap your head around what a viva entails or are already deep in the trenches of preparation, this blog is designed to offer you comprehensive, step-by-step guidance.

By understanding the process, expectations, and preparing effectively, you can walk into your viva with confidence, ready to defend your thesis and demonstrate your deep understanding of your research area.

What is a PhD viva or viva voce?

A PhD viva or viva voce is an oral examination where you defend your thesis in front of internal examiner(s) from your institution and/or external examiner(s) from another institution specializing in your subject area.

There may be up to 5 people on your viva panel. 

They are testing your knowledge and thought processed to be admitted into the degree.

Typically lasting for an hour and a half to two hours, the viva is a conversation between experts, giving you the chance to elaborate and clarify your research.

Preparation for the viva can involve ongoing conversations, with supervisors and focused development after thesis submission.

As the viva voce derives from the Latin for ‘living voice,’ let your passion for your research come alive in your defense.

As nerve-wracking as it might be, remember to relax and use this opportunity to share your contribution to your field. 

Supervisors will (or at least should) conduct mock vivas to help you prepare for questions and build confidence. Ask for a mock viva if one is not offered by your supervisor. 

During the viva, your supervisor may be present as a silent observer, ensuring examination conduct.

Outcomes of a viva range from:

• passing without corrections,
• passing with minor or major corrections,
• or not passing at all.

Examiners won’t necessarily spot all mistakes, but they read your work thoroughly, engage in a comprehensive discussion, and submit independent reports before the viva.

Understand what’s expected of you in your viva (Examiner point of view)

From an examiner’s point of view, in your viva, you are expected to confidently explain and defend your thesis.

You should be well-prepared, recognizing that examiners will carefully read your work and may identify minor mistakes.

Keep in mind that examiners may not know your thesis as well as you, so be prepared to clarify and elaborate on your research. 

They may ask some really simple and basic questions of you – particularly early on in your thesis defense.

It is essential to demonstrate your understanding of the topic and address any questions posed by the examiners.

You may have the option to include your supervisor or other supportive figures from your institution during the viva for moral support and to witness the examination’s conduct.

Understand that examiners typically work independently and exchange reports just before the viva, so be ready to engage in a comprehensive discussion about your work.

Focus on showcasing your:

• research abilities, and
• significance of your thesis

during the viva.

How to prepare for your viva exam

To prepare for a PhD viva, follow these actionable steps:

1. Familiarize yourself with your examiner’s and supervisor’s work (4-5 days): Know their research interests, potential biases, and recent publications, and consider how they might relate to your thesis.

2. Understand your thesis deeply (5-6 days): Be able to explain your research question/hypothesis, aims, theoretical framework, methods, and key results concisely. Review all the papers you discussed or mentioned in your thesis, noting their relevance to your work. Address any weaknesses in your analysis, and justify your study’s merit to earn a PhD.

3. Practice summarizing your thesis: Prepare a 200-word summary of each chapter and a 2-minute explanation of your whole thesis. Be ready to clarify your work in one or two sentences.

4. Anticipate general questions : Examples include summarizing your thesis, stating your research question or hypothesis, and discussing your main results. Prepare answers for potential questions from both a general and discipline-specific context.

5. Conduct mock vivas with your supervisor: Simulate the viva experience to get comfortable with the format, build confidence, and receive feedback on your performance.

6. Review general questions and answers (last 1-2 days): Brush up on your prepared responses and make any necessary final adjustments.

Remember, most PhD students pass their viva, so focus on preparing and confidently discussing your research.

Things to keep in mind during your viva – top tips

Here are the top tips to keep in mind during your viva:

1. Ask for clarifications if a question is unclear. Be polite and ensure you understand the question before attempting to answer it.   2. Don’t interrupt the examiner while they are asking a question. Give them time to finish, as it shows respect and allows you to fully comprehend the inquiry.

3. Be honest if you don’t know the answer to a question. Prepare a polite response for unexpected questions you cannot answer.

4. Maintain confidence without arrogance. Display a level of nervousness that reflects your dedication to the process, but avoid overconfidence or disrespect.

5. Keep your answers concise and structured. Use a clear format when providing your response, such as breaking it down into key points.

6. Speak at a moderate pace. Avoid talking too fast or too slow, as it can be distracting for the listeners. Practice controlling your speech rate during your preparations.

7. Give yourself plenty of time before the defense to prepare and relax. You should be in the right state of mind for your viva.

8. Be familiar with the protocols, format, and panel of your viva. Attend other thesis defenses, read your institution’s guidelines, and research the background of the examiners on your panel.

By following these tips, you can enter your viva well-prepared and have a successful defense. Enjoy the experience and demonstrate the hard work you have put into your research.

Wrapping up – thesis viva

Concluding our comprehensive guide on the viva process for PhD students, the final thought we leave you with is this: your PhD viva, or viva voce, is an opportunity to defend your research, a unique chance to demonstrate your motivation, strengths, and even your limitations as a researcher.

It’s important to understand the viva definition in its entirety: a viva voce is an oral test undertaken in front of a panel of examiners.

This panel usually includes one internal examiner from your institution and one external examiner from another. It may also include other experts depending on policies and practices.

Preparation is key when you get to the viva stage.

To that end, arranging a mock viva with your supervisor could help you anticipate the types of questions you’ll be asked. This practice could enable you to put your best foot forward during the real deal.

Don’t be surprised if the viva examination lasts anywhere between one and four hours.

You may be asked to elaborate on your PhD thesis, defend your field of study’s claims, discuss its strengths and weaknesses, and suggest future research opportunities. Your response to the assessment task should be in-depth and thoughtful.

Under the current COVID-19 conditions, many students are having their viva over Zoom or Skype.

In these cases, it’s important to arrange your setting to minimise distractions. Feel free to ask for clarification if the audio cuts out or you miss a question.

In preparation for your viva, review the academic profiles of your panel members, anticipate questions they might ask, and keep a copy of your thesis at hand.

Also, remember that while it’s important to provide an in-depth response, a concise explanation is ideal to avoid going on a tangent. If you’re asked about any weaknesses or limitations in your work, be honest and thoughtful in your response, highlighting your problem-solving skills as a researcher.

You’ve worked hard to reach this stage; now it’s your chance to shine! Best of luck!

Dr Andrew Stapleton has a Masters and PhD in Chemistry from the UK and Australia. He has many years of research experience and has worked as a Postdoctoral Fellow and Associate at a number of Universities. Although having secured funding for his own research, he left academia to help others with his YouTube channel all about the inner workings of academia and how to make it work for you.

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Preparing For Your Dissertation Defense

13 Key Questions To Expect In The Viva Voce

By: Derek Jansen (MBA) & David Phair (PhD) . Reviewed By: Dr Eunice Rautenbach | June 2021

Preparing for your dissertation or thesis defense (also called a “viva voce”) is a formidable task . All your hard work over the years leads you to this one point, and you’ll need to defend yourself against some of the most experienced researchers you’ve encountered so far.

It’s natural to feel a little nervous.

In this post, we’ll cover some of the most important questions you should be able to answer in your viva voce, whether it’s for a Masters or PhD degree. Naturally, they might not arise in exactly the same form (some may not come up at all), but if you can answer these questions well, it means you’re in a good position to tackle your oral defense.

Viva Voce Prep: 13 Essential Questions

• What is your study about and why did you choose to research this in particular?
• How did your research questions evolve during the research process?
• How did you decide on which sources to include in your literature review?
• How did you design your study and why did you take this approach?
• How generalisable and valid are the findings?
• What were the main shortcomings and limitations created by your research design?
• How did your findings relate to the existing literature?
• What were your key findings in relation to the research questions?
• Were there any findings that surprised you?
• What biases may exist in your research?
• How can your findings be put into practice?
• How has your research contributed to current thinking in the field?
• If you could redo your research, how would you alter your approach?

#1: What is your study about and why did you choose to research this in particular?

This question, a classic party starter, is pretty straightforward.

What the dissertation or thesis committee is assessing here is your ability to clearly articulate your research aims, objectives and research questions in a concise manner. Concise is the keyword here – you need to clearly explain your research topic without rambling on for a half-hour. Don’t feel the need to go into the weeds here – you’ll have many opportunities to unpack the details later on.

In the second half of the question, they’re looking for a brief explanation of the justification of your research. In other words, why was this particular set of research aims, objectives and questions worth addressing? To address this question well in your oral defense, you need to make it clear what gap existed within the research and why that gap was worth filling.

#2: How did your research questions evolve during the research process?

Good research generally follows a long and winding path . It’s seldom a straight line (unless you got really lucky). What they’re assessing here is your ability to follow that path and let the research process unfold.

Specifically, they’ll want to hear about the impact that the literature review process had on you in terms of shaping the research aims, objectives and research questions . For example, you may have started with a certain set of aims, but then as you immersed yourself in the literature, you may have changed direction. Similarly, your initial fieldwork findings may have turned out some unexpected data that drove you to adjust or expand on your initial research questions.

Long story short – a good defense involves clearly describing your research journey , including all the twists and turns. Adjusting your direction based on findings in the literature or the fieldwork shows that you’re responsive , which is essential for high-quality research.

#3: How did you decide on which sources to include in your literature review?

A comprehensive literature review is the foundation of any high-quality piece of research. With this question, your dissertation or thesis committee are trying to assess which quality criteria and approach you used to select the sources for your literature review.

Typically, good research draws on both the seminal work in the respective field and more recent sources . In other words, a combination of the older landmark studies and pivotal work, along with up-to-date sources that build on to those older studies. This combination ensures that the study has a rock-solid foundation but is not out of date.

So, make sure that your study draws on a mix of both the “classics” and new kids on the block, and take note of any major evolutions in the literature that you can use as an example when asked this question in your viva voce.

#4: How did you design your study and why did you take this approach?

This is a classic methodological question that you can almost certainly expect in some or other shape.

What they’re looking for here is a clear articulation of the research design and methodology, as well as a strong justification of each choice . So, you need to be able to walk through each methodological choice and clearly explain both what you did and why you did it. The why is particularly important – you need to be able to justify each choice you made by clearly linking your design back to your research aims, objectives and research questions, while also taking into account practical constraints.

To ensure you cover every base, check out our research methodology vlog post , as well as our post covering the Research Onion .

#5: How generalizable and valid are the findings?

This question is aimed at specifically digging into your understanding of the sample and how that relates to the population, as well as potential validity issues in your methodology.

To answer question this well, you’ll need to critically assess your sample and findings and consider if they truly apply to the entire population, as well as whether they assessed what they set out to. Note that there are two components here – generalizability and validity . Generalizability is about how well the sample represents the population. Validity is about how accurately you’ve measured what you intended to measure .

To ace this part of your dissertation defense, make sure that you’re very familiar with the concepts of generalizability , validity and reliability , and how these apply to your research. Remember, you don’t need to achieve perfection – you just need to be aware of the strengths and weaknesses of your research (and how the weaknesses could be improved upon).

Need a helping hand?

#6: What were the main shortcomings and limitations created by your research design?

This question picks up where the last one left off.

As I mentioned, it’s perfectly natural that your research will have shortcomings and limitations as a result of your chosen design and methodology. No piece of research is flawless. Therefore, a good dissertation defense is not about arguing that your work is perfect, but rather it’s about clearly articulating the strengths and weaknesses of your approach.

To address this question well, you need to think critically about all of the potential weaknesses your design may have, as well as potential responses to these (which could be adopted in future research) to ensure you’re well prepared for this question. For a list of common methodological limitations, check out our video about research limitations here .

#7: How did your findings relate to the existing literature?

This common dissertation defense question links directly to your discussion chapter , where you would have presented and discussed the findings in relation to your literature review.

What your dissertation or thesis committee is assessing here is your ability to compare your study’s findings to the findings of existing research . Specifically, you need to discuss which findings aligned with existing research and which findings did not. For those findings that contrasted against existing research, you should also explain what you believe to be the reasons for this.

As with many questions in a viva voce, it’s both the what and the why that matter here. So, you need to think deeply about what the underlying reasons may be for both the similarities and differences between your findings and those of similar studies.

#8: What were your key findings in relation to the research questions?

This question is similar to the last one in that it too focuses on your research findings. However, here the focus is specifically on the findings that directly relate to your research questions (as opposed to findings in general).

So, a good way to prepare for this question is to step back and revisit your research questions . Ask yourself the following:

• What exactly were you asking in those questions, and what did your research uncover concerning them?
• Which questions were well answered by your study and which ones were lacking?
• Why were they lacking and what more could be done to address this in future research?

Conquering this part dissertation defense requires that you focus squarely on the research questions. Your study will have provided many findings (hopefully!), and not all of these will link directly to the research questions. Therefore, you need to clear your mind of all of the fascinating side paths your study may have lead you down and regain a clear focus on the research questions .

#9: Were there any findings that surprised you?

This question is two-pronged.

First, you should discuss the surprising findings that were directly related to the original research questions . Going into your research, you likely had some expectations in terms of what you would find, so this is your opportunity to discuss the outcomes that emerged as contrary to what you initially expected. You’ll also want to think about what the reasons for these contrasts may be.

Second, you should discuss the findings that weren’t directly related to the research questions, but that emerged from the data set . You may have a few or you may have none – although generally there are a handful of interesting musings that you can glean from the data set. Again, make sure you can articulate why you find these interesting and what it means for future research in the area.

What the committee is looking for in this type of question is your ability to interpret the findings holistically and comprehensively , and to respond to unexpected data. So, take the time to zoom out and reflect on your findings thoroughly.

#10: What biases may exist in your research?

Biases… we all have them.

For this question, you’ll need to think about potential biases in your research , in the data itself but also in your interpretation of the data. With this question, your committee is assessing whether you have considered your own potential biases and the biases inherent in your analysis approach (i.e. your methodology). So, think carefully about these research biases and be ready to explain how these may exist in your study.

In an oral defense, this question is often followed up with a question on how the biases were mitigated or could be mitigated in future research. So, give some thought not just to what biases may exist, but also the mitigation measures (in your own study and for future research).

#11: How can your findings be put into practice?

Another classic question in the typical viva voce.

With this question, your committee is assessing your ability to bring your findings back down to earth and demonstrate their practical value and application. Importantly, this question is not about the contribution to academia or the overall field of research (we’ll get to that next) – it is specifically asking about how this newly created knowledge can be used in the real world.

Naturally, the actionability of your findings will vary depending on the nature of your research topic. Some studies will produce many action points and some won’t. If you’re researching marketing strategies within an industry, for example, you should be able to make some very specific recommendations for marketing practitioners in that industry.

To help you flesh out points for this question, look back at your original justification for the research (i.e. in your introduction and literature review chapters). What were the driving forces that led you to research your specific topic? That justification should help you identify ways in which your findings can be put into practice.

#12: How has your research contributed to current thinking in the field?

While the previous question was aimed at practical contribution, this question is aimed at theoretical contribution . In other words, what is the significance of your study within the current body of research? How does it fit into the existing research and what does it add to it?

This question is often asked by a field specialist and is used to assess whether you’re able to place your findings into the research field to critically convey what your research contributed. This argument needs to be well justified – in other words, you can’t just discuss what your research contributed, you need to also back each proposition up with a strong why .

To answer this question well, you need to humbly consider the quality and impact of your work and to be realistic in your response. You don’t want to come across as arrogant (“my work is groundbreaking”), nor do you want to undersell the impact of your work. So, it’s important to strike the right balance between realistic and pessimistic .

This question also opens the door to questions about potential future research . So, think about what future research opportunities your study has created and which of these you feel are of the highest priority.

#13: If you could redo your research, how would you alter your approach?

This question is often used to wrap up a viva voce as it brings the discussion full circle.

Here, your committee is again assessing your ability to clearly identify and articulate the limitations and shortcomings of your research, both in terms of research design and topic focus . Perhaps, in hindsight, it would have been better to use a different analysis method or data set. Perhaps the research questions should have leaned in a slightly different direction. And so on.

This question intends to assess whether you’re able to look at your work critically , assess where the weaknesses are and make recommendations for the future . This question often sets apart those who did the research purely because it was required, from those that genuinely engaged with their research. So, don’t hold back here – reflect on your entire research journey ask yourself how you’d do things differently if you were starting with a  blank canvas today.

Recap: The 13 Key Dissertation Defense Questions

To recap, here are the 13 questions you need to be ready for to ace your dissertation or thesis oral defense:

As I mentioned, this list of dissertation defense questions is certainly not exhaustive – don’t assume that we’ve covered every possible question here. However, these questions are quite likely to come up in some shape or form in a typical dissertation or thesis defense, whether it’s for a Master’s degree, PhD or any other research degree. So, you should take the time to make sure you can answer them well.

If you need assistance preparing for your dissertation defense or viva voce, get in touch with us to discuss 1-on-1 coaching. We can critically review your research and identify potential issues and responses, as well as undertake a mock oral defense to prepare you for the pressures and stresses on the day.

Psst... there’s more!

This post was based on one of our popular Research Bootcamps . If you're working on a research project, you'll definitely want to check this out ...

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12 Comments

Very interesting

Interesting. I appreciate!

Really appreciating

My field is International Trade

Interesting

This is a full course on defence. I was fabulously enlightened and I gained enough confidence for my upcoming Masters Defence.

There are many lessons to learn and the simplicity in presentationmakes thee reader say “YesI can”

This is so helping… it has Enlightened me on how to answer specific questions. I pray to make it through for my upcoming defense

Lovely to hear that 🙂

Really educative and beneficial

Interesting. On-point and elaborate. And comforting too! Thanks.

Thank you very much for the enlightening me, be blessed

Thankyou so much. I am planning to defend my thesis soon and I found this very useful

Very interesting and useful to all masters and PhD students

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What Is the Viva?

• First Online: 16 September 2022

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• Isabelle Butcher 3  

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An explanation as to what the viva exam is, what it is not, its purpose, a general overview of what it might involve, why it is an oral exam, the importance of conversation in the viva and the opportunities that can arise from your viva.

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Butcher, I. (2022). What Is the Viva?. In: How to Excel in Your Doctoral Viva. Palgrave Macmillan, Cham. https://doi.org/10.1007/978-3-031-10172-4_2

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What is a PhD Viva?

• Maisie Dadswell
• September 6, 2023

After you have written and submitted your PhD thesis, the next stage in the process is to pass your PhD viva examination, which your PhD supervisor at UWS London will fully prepare you for. Your viva will happen within three months of submitting your thesis; after completing your viva, you will know if you have passed with flying colours and can call yourself a doctor in your respective field. Though the prospect may sound daunting, see it as the chance to prove that your creative knowledge makes you a peer to the academic panel that will be present for your viva; it is the perfect opportunity to establish yourself as an intellectual authority in your field. 

This article will cover what a viva is, how it works, what the potential outcomes are, who will be present on the panel and provide some helpful tips that are relevant for all fields of study.

Doctor of Philosophy (PhD) degree is the highest academic degree one can earn in most fields of study. It typically involves conducting original research, making a significant contribution to the field’s knowledge, and writing a dissertation or thesis that demonstrates expertise in a specific area. Learn more about PhD at UWS Londo n here .

A PhD viva also referred to as a Viva Voce, Latin for ‘living voice’, is an oral examination which follows the submission of your doctoral thesis, where you will showcase your knowledge and defend your research in front of a panel comprised of academic experts. This examination is compulsory for the vast majority of doctoral students.

PhD Viva Questions

All the questions asked during your viva will assess: 

• Your knowledge depth in your specific area of research. 
• How deep your knowledge is concerning the broader research field relevant to your PhD. 
• If you can place your work in a broader context. 
• If you can demonstrate how your research contributes to your field. 
• If you know of any potential limitations and oversights in your work – where applicable. 

If the panel has any suspicions that your work may not be your own, they may also question the authenticity of your work.

How Long Does a PhD Viva Take?

One of the most frequently asked questions is how long is a PhD Viva. The average length is around three hours, but several factors can extend or shorten your oral examination. If there are issues in your PhD thesis or if it is poorly presented or formatted, this could lead to confusion on the panel, which will necessitate more clarification for you to set the record straight and prove that you understand your field of study. Similarly, how well-prepared you are and how concisely you respond to questions will also have a bearing on the duration of the viva. 

However, lengthy PhD defences don’t always need to be a sign that it is going poorly! Your examiners may enjoy the discussion enough that they will want to talk about it long after they have concluded that you have passed the examination. Even though, in some rare instances, a viva can take up to eight hours there may be university or country-specific rules on maximum duration – feel free to discuss this with your PhD supervisor beforehand.

Who Will Be on Your Viva Panel?

Your PhD examination will be carried out by one examiner from your university and an examiner from an outside university. Your PhD supervisor may also be on the panel, although this is not always the case. If you do find your supervisor on your viva panel, in the UK, it is common that they are prohibited from speaking. If they are present, they will solely act as observers. 

Together, the examiners will highlight what they found when reading your PhD thesis thoroughly, focusing on the theories and key concepts you put forward in your research. To ensure that the examiners are being fair and appropriate in the viva process, there is also usually a chairperson on the panel who takes notes documenting any notable suggestions or comments. The chairperson will either be internal or external from the university.

What Are the Outcomes of a Viva Exam?

In the UK, there are six potential Viva PhD outcomes. We have listed them below from the best outcome to the worst. However, it is worth bearing in mind that even if you need to make minor or major corrections after your viva, you will be given equal credit as someone who was awarded their PhD degree without corrections.

The average pass rate for a PhD viva in the UK can vary depending on the university, field of study, and specific criteria used for evaluation. However, it is generally quite high.

In many UK universities, a significant majority of candidates who reach the viva stage pass, often with some amendments required. A “pass with minor amendments” is a common outcome, indicating that the candidate has demonstrated a sufficient understanding of the research. Recent research on viva experiences indicates that 84% of Ph.D. candidates are required to make minor revisions in order to achieve a passing grade.

1. Awarded PhD Degree with No Corrections

It is rare for students to pass their PhD degree without any corrections. So, if this is your outcome following your viva, celebrations are in order! It means you have seriously impressed your examiners with your research and examination.

2. Minor Corrections Required to Pass

Recent viva experience research has highlighted that 84% of PhD candidates must make minor corrections to pass. Typically, the minor corrections will be small issues with the thesis, such as grammatical errors, typos, typograph issues, or presentational faux pas, which can be quickly edited. Don’t be disparaged if you are presented with this outcome following your viva; it still means that you have done remarkably well with your thesis and viva.

3. Major Corrections Required to Pass

This outcome is the second most common following a viva; it means you have met the required standard to be awarded your doctorate, but some revisions or corrections need to be made. Typically, this will involve you improving the structure or clarity of your thesis by rewriting chapters or adding additional analysis. Once again, needing to make major corrections shouldn’t be seen as a failure; although it may be disparaging, it doesn’t invalidate your research or contribution to your field.

4. Revise and Represent to Pass

You will be asked to revise and represent your work if the panel can see the potential within your work and that it can meet requirements if you undertake additional research or analysis. You will be presented with this outcome if your work doesn’t quite reach the PhD degree standard; unlike with the minor and major corrections outcomes, if you are asked to revise and represent, you will need to present your revised work to the panel again.

5. Awarded an MPhil Degree

If the academic panel decide that major corrections or additional research still won’t allow your work to meet the PhD standard, you may be awarded a lower-standard MPhil degree instead. For example, philosophy PhD candidates will be awarded a Master of Psychology degree instead of a Doctor of Philosophy degree. Typically, MPhil degrees are awarded in place of PhDs if your work lacks originality or the knowledge creation that a PhD requires. An MPhil degree ranks above MA and MSc degrees as the most advanced Masters degrees. An MPhil degree still demonstrates that you have the same skill set as someone who successfully obtained a PhD, and they are still valuable to employers.

6. Immediate Fail

An immediate fail is rare; a 2022 survey found that only 3.3% of PhD candidates fail their viva outright – it certainly isn’t something you should obsess over. If when you are preparing for your viva, you find some faults in your thesis, don’t be afraid to broach them yourself in your exam; this will show that you can present a passable thesis. `

PhD Viva Tips:

Don’t work with irrelevant guidance or tips.

While brushing up on generalised tips online can help you to feel prepared for your viva, remember that there will always be variability in the process, the focus of the exam, and the questions asked. The variable factors include your field of study and the university you are obtaining your doctorate. With this in mind, always chat with your supervisor to ensure you are preparing with the right and relevant knowledge.

Treat the Examiners as Equals

Your PhD defence may technically be an exam, and naturally, many PhD candidates are stressed, daunted, or overwhelmed by the process for weeks. However, you will do much better if you go into the exam with the mindset that you are equal with the academic panel and treat the examination as a discussion rather than an inquisition. Remember, your viva is your chance to be seen as a doctor, not a student.

Mindset Matters

After spending years on your thesis, you will know your subject inside and out; it is your area of expertise; don’t go into the viva with a defensive and confrontational mindset; remain confident in your knowledge creation and how it benefits your field of study. Imposter syndrome can come in hard here, so limit your negative self-talk and silence your inner critic.

Ask for a Mock Viva with Your Supervisor

Never be shy about asking your PhD supervisor for the support you need as you prepare for your viva. They will be best placed to answer all of your questions as they will know the procedure for your university and your field of research. Your PhD supervisor will likely have already been present in viva exams; they will know the score, and more importantly, after working with you for years, they will want you to pass your viva – never be shy about asking them to arrange a mock viva to help you prepare.

How long is a PhD?

If you look for an answer to the question, how long is a PhD thesis, you will notice that there is a lot of contradictory information on the internet because there is no one-size-fits-all answer for PhD students. How long does a PhD take ? Well, we’ve got all the info you need in our other blog

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Top 12 Potential PhD Viva Questions and How to Answer Them

Breathed a sigh of relief after submitting the PhD thesis you’ve burnt the midnight oil for? Not so soon! While submitting your thesis is a massive achievement, defending it decides whether you will receive the doctoral degree or not. Although every PhD viva examination is different, there are similarities in the types of questions asked at each. In this article, we shall discuss the most common and potential PhD viva questions and how to answer them.

Types of PhD Viva Questions

Generally, examiners prepare a series of questions for you to answer at the PhD viva voce examination. These questions are primarily based on your thesis. However, the questions asked in PhD viva examinations can be broadly grouped under four basic headings:

• General Questions
• Research Context and Methods
• Analysis and Findings
• Discussions and Conclusion/Implications

Therefore, while preparing for your PhD viva and defending your thesis , you must consider the types of questions you’re likely to be asked. This helps in practicing your answers in advance and not being baffled during the viva. Practicing how you would answer questions based on these four basic categories will take you a long way in your preparations.

Commonly Asked PhD Viva Questions and How to Answer Them

While sticking to answering the most commonly asked questions might sound simple, it is equally important to be prepared for counter questions. Furthermore, it’s easy to go off on a tangent due to nervousness. This leads to opening up other lines of enquiry from the examiners in areas you hadn’t probably expected to be questioned about.

Ideally, you aren’t expected to dictate your thesis as it is. Examiners are interested in knowing your understanding of the research, its methods, analysis and findings, conclusion and implications, etc.

Despite the differences in every PhD viva, you must be prepared to answer these common questions logically. Below are some popular PhD viva questions to prepare:

1. Tell me about yourself.

Introduce yourself and talk about your areas of interest related to research. More importantly, focus on the areas you are extremely positive about. Briefly speak about your past achievements without overwhelming the examiners and sounding boastful. Keep the introduction professional.

2. What is the reason for selecting this research question?

The response to this question is often generalized by saying that you are interested in the topic. However, examiners want to hear the specifications of your interest in the topic. You must plan your answer stating the most interesting aspect of your research and why did you choose the research question over another topic from the same or allied domain. Furthermore, cite certain instances that helped you in selecting the research topic and the particular field for your project.

3. What is the key focus of your research?

Remember that the answer to this question is not about summarizing your research. It involves talking about the area of primary focus of research. Most importantly, in order to demonstrate the viability of your research, it is essential to identify some of the key questions it addresses.

4. Did the research process go as per your plan or were there any unexpected circumstances that you had to deal with?

The purpose of this question is not only to see whether you can work as per your structured plan, but also to understand your readiness with backup plans in case of unforeseen situations. An ideal way to answer this is by clearly stating if the project went as per your predefined plan. Furthermore, be honest in mentioning if you were assisted by others in dealing with it, as it may lead to a new set of questioning from the examiners.

5. After completion of your research, which part of the process did you enjoy the most and why?

Remember that the examiners know about a PhD student’s stressful journey . Therefore, do not elaborate on the hardships that you went through during your research, unless asked otherwise. Emphasize on the aspects of the research project that you enjoyed and looked forward to every time you stepped in your laboratory. Describe how you developed interest in newer approaches to conduct research.

6. As a researcher, what change has this research brought in you?

This question demands a strong, progressive, and positive response. Remember your first day in the research laboratory and compare it to today. Identify the differences in your traits as a researcher. Mention how following, reading, and analyzing other researchers’ works have brought a positive change in you. Furthermore, address how you overcame your shortcomings as a researcher and upskilled yourself.

7. Summarize your thesis.

Be well versed with the entire project. Start by explaining why you selected the topic of your thesis and close your explanation by providing an optimum solution to the problem. You must prepare for 3 types of answers for this question. Prepare a 1-minute, 3-5 minutes, and 10-minute summary and use the correct one based on your audience at the viva.

8. What developments have you witnessed in this field since you began your doctorate? How did these developments change your research context?

Familiarize yourself with the advances in your field throughout your PhD. Mention works of researchers you have referred to while working on your project. Additionally, elaborate on how other researchers’ work influenced your research and directed you to finding results.

9. What original contribution has your thesis made to this field of study?

Answer this question by keeping in mind what was known before in published literature and what you have added as part of being awarded your PhD. Firstly, you must present a major piece of new information during your research project. Secondly, elaborate on how your research expands the existing literature. Thirdly, mention how your work is different from other researchers’ works that you referred. Finally, discuss how you developed a new product or improved an existing one.

10. How well did the study design work?

While answering this question, you must focus on how your planned methods and methodologies were executed. Furthermore, mention how you tackled difficulties in study design and concluded your research.

11. Elaborate on your main findings and how do they relate to literature in your field?

While answering this question, elaborate on how you evaluated the key findings in your research. Mention the key factors involved and the reason for choosing a particular process of evaluation. Furthermore, explain how your findings are related with the literature review of your project. Mention its significant contributions in your field of research. In addition, discuss how your research findings connect with your hypothesis as well as the conclusion of your research.

12. What is the strength and weakness of your research?

While you may want to impress the examiner by emphasizing on the strengths of your research, being aware of the weaknesses and planning a directional move to overcome them is also equally important. Hence, mention the strengths first and elaborate on how they connect with the key findings. Additionally, underline the limitations and the factors that could be transformed into strengths in future research.

How nervous were you while preparing for your PhD viva voce? Did you follow any specific tips to ace your PhD viva voce ? How important is it to prepare for these common PhD viva questions beforehand? Let us know how you prepared for your PhD viva voce in the comments section below! You can also visit our  Q&A forum  for frequently asked questions related to different aspects of research writing and publishing answered by our team that comprises subject-matter experts, eminent researchers, and publication experts.

Really useful in helping me put a plan / script together for my forthcoming viva. Some interesting questions that I hadn’t thought about before reading this article – the proof of the pudding will be how well the viva goes of course, but at least I now have a head start! Many thanks

Thank you, this is super helpful. I have my viva voce in a month and I’ll be using these questions as a guide

Well framed questions

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How to prepare for a phd viva.

Preparing for your PhD viva can be a daunting task. You'll want to ensure that you are ready to defend your thesis successfully.

To help, we've rounded up some useful tips on what to expect during your viva experience, how you can fully prepare for the process and what to expect after viva is done.

What is a PhD viva?

For the majority of PhD students, finishing the dissertation is a seminal moment. After all, knowing that such a long project has come to an end may seem almost surreal.

However, a hard copy of the dissertation is not the end of the PhD experience , each dissertation will have to be orally ‘defended’ in an examination called a viva, which usually takes between one and two hours to complete.

A PhD is an oral examination in the form of a discussion in which PhD students present their PhD thesis and defend their research methods and outcomes to a panel of academic experts.

The word ’viva’ is a shortened form of the Latin term ‘viva voce’ which means ‘live voice’.

How to prepare for a PhD viva

A key way to ensure success in your PhD viva is to make sure you are properly prepared – this can be done in four simple ways:

1. Know your research project inside out.

2. Find out about your viva examiners if you can. If you know about their areas of expertise, you may be able to anticipate their lines of questioning and even work out what they’d like to hear more about.

3. Compile a list of possible questions and practice your explanation/defence of methods used and outcomes discovered.

4. Prepare properly for the actual day by planning your journey to the PhD viva, knowing what you’re going to wear and compiling all the documentation that you need to have with you.

How to prepare ahead of your PhD viva – 5 steps to success

After you hand in your thesis/dissertation, you will usually have a few free weeks before undertaking the PhD viva. It is important that you prepare well during this period and walk out of your examination with at least a “pass mark subject to minor corrections”.

We have compiled a list of some of the most important PhD viva preparation steps to help you succeed in your viva.

STEP 1 – Take a break

After you have submitted your thesis, it is good to take a one or two week break and avoid thinking about your work. This will allow you to see your thesis from a third-person perspective and to understand your own shortcomings more clearly when you read it once again.

STEP 2 ­– Get to know your thesis

Read each section carefully and summarise its main points. You need to know how to explain and justify the main aspects of your thesis including the research question, methodology and data analysis. Writing any thoughts that come to your mind while reading the thesis as comments will help you to establish a "personal connection" with the thesis and understand it in greater depth.

STEP 3 – Critically examine your thesis

The crucial step of preparation is to lose any "compassion" towards your own work and criticise any weak points that you find in your thesis. It is very likely that your examiners will focus on some of these points in your viva, and you need to find out how to justify them.

STEP 4 – Learn how to defend your thesis!

Write a list of possible critical questions regarding your research and learn how to answer them convincingly. Try to think of yourself as a lawyer and of your thesis as the defendant whom you need to defend!

STEP 5 – Arrange a mock viva with your supervisor around 1-2 weeks before the actual viva

This will help you determine whether your preparation has been complete or there are still some aspects to be prepared before you can successfully defend your thesis. And don't forget to do something enjoyable and relax on the day before your actual viva!

PhD viva tips

We have compiled some of the most useful PhD viva tips to help you understand what is awaiting you if you ever decide to become a PhD student or if you already are one.

Who will be at a PhD viva?

A viva is attended by the PhD student and at least two academic experts.

In some universities, in addition to the student and the two examiners, there may be a senior member of academic staff present to act as chair of the examination. Your supervisor may also be present, although some universities do not allow this.

If there is a chair or your supervisor present at your PhD viva, they are not allowed to ask you questions or to take part in any of the discussion about the outcome.

What questions are asked at a PhD viva?

The examiners will usually start by trying to make you feel comfortable, perhaps by welcoming you and having some polite ‘social’ conversation to start with, for they will understand that you are nervous.

They will soon move on to the range of questions they have planned. These questions could cover anything about the thesis. They might ask you about the methods you have used, the results and findings or the conclusions you have drawn.

They may ask very detailed questions, or they may ask about the overall methods or findings. They will certainly want to explore any areas they feel you have not explained clearly enough or in enough detail in your thesis.

You may be asked to justify some of the conclusions you have made and to show exactly how your data has led you to draw those conclusions. In the area of methodology, you may be asked to justify your choice of the overall method you used, as well as explaining the decisions you made about the detailed methods you chose.

You may also be asked to show how well you know the range of literature and previous research in your field and how your findings add to the literature. In most vivas you will be asked to explain carefully what you believe to be your distinctive ‘contribution to knowledge’ from your research.

What will the PhD examiners want to know?

Understanding what PhD examiners might ask during your viva and having your answers is one way to prepare for success.

How do you justify the critical aspects of your work?

No dissertation is perfect and there will be some aspects of your PhD research that your examiners will be specifically critical about. Thus, it will be important for them to ask you some of the questions regarding these 'critical' aspects of your work to see if you can justify them. These questions will probably be decisive in determining the outcome of your viva.

Can you elaborate on specific sections of your research?

Besides focusing on some 'critical' aspects of your work, the examiners may ask you to give some more elaborate explanations of specific sections of your thesis or specific techniques used in your research. This will help them determine whether you really understand your own work and can think critically about your research.

How does your research contribute to your field of study?

Last, but not least, your examiners will be interested in how well you understand the place of your work within your field of research , and they will ask you to explain the overall contribution of your research to your discipline. As an aspiring student, you will always need to see the big picture and understand how your ideas can shape your academic field.

PhD viva – an academic discussion

A helpful way to think of the viva is as a serious academic discussion. It is an opportunity to sit and talk about your work and your field with two senior academics who know the field well.

As such, it should be challenging and stimulating, and should give you a chance to show that you can engage in serious academic discussion and debate at a very high level.

After the examination many students look back on their viva and see it as a stimulating and enjoyable experience, and they forget the nerves they felt when they first entered the viva room.

The dos and don’ts of a PhD viva

After you have carefully prepared how to defend the content of your thesis, it is important to think of how you should behave during the actual viva.

We have a whole host of PhD viva tips for you. From how to answer properly and be convincing to what to say and what not to say – here, we have clarified these things in our list of PhD viva  dos and don’ts . 

Are you a Doctor after your viva?

Once you have passed your PhD viva, you cannot officially use the title ‘Dr’ until you receive official documentation from your university stating that you are a ‘Doctor’.

Can you fail a PhD viva?

Although the majority of PhD students are happy with the outcome of their PhD viva, things don’t always go as expected, and some of the least appealing outcomes do happen. You can fail a PhD viva – although according to recent research by Discover PhDs this number is only 4%. It is more common for borderline students to be awarded a provisional pass pending amends to their research project.

If, as a PhD student, you feel that your own work is not of very high quality and you are aware that the unfavourable outcome is your fault, there is not much you can do except for complying with the decision of your examiners.

Appealing a PhD viva decision

If you feel that your viva has not been appropriately conducted and the outcome doesn’t match the quality of your performance, there are some things you can do.

Universities in the UK will usually allow you to appeal against how your examination was conducted and if you do appeal, a panel of researchers within your university will be appointed to investigate the issue, but you must possess clear evidence in your support.

If your appeal is successful, you will get a chance to undertake another viva with different examiners.

If the university hasn’t decided in your favour, you will be able to appeal to an external organisation, such as the Office of the Independent Adjudicator for Higher Education (OIA). But remember, appeals are usually not very successful, and it is always better to make sure that your thesis is of high quality and that you have done the right amount of PhD viva preparation.

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How Long Is A PhD?

PhD In The USA

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5 tips for passing your PhD viva

Every Doctoral researcher is expected to defend their thesis through an oral test - so discover how to prepare for your PhD viva and ensure you make a good impression on the examiners

What is a PhD viva?

A viva voce is an oral test, which literally translated means 'with the living voice'. It's a focused discussion giving you the opportunity to present your PhD thesis and then defend it in front of a panel of academic experts.

1. Understand what's expected of you

Traditionally, your thesis would always be discussed in person, with the interview style viva exam overseen by at least two (internal and external) examiners. Afterwards, they would provide you with a joint written report detailing any corrections that need to be made.

However, following the coronavirus (COVID-19) pandemic, the online PhD viva has become more commonplace with this examination more likely to take place via Microsoft Teams, Skype or Zoom.

The virtual experience will still typically follow the same format, but you'll be briefed in advance about the arrangements and any technical aspects to bear in mind. You can prepare for an online PhD viva by reading our video interview tips .

The chair of the viva is usually the internal examiner, although it can be an independent person. If you and the examiners agree, your PhD supervisor can also be present.

The examiners' main objective is to ascertain that you've written your own thesis, so if you have and are ready to talk through how you completed it, there's no need to panic. You may even enjoy the viva voce test.

In addition to assessing your thesis, the examiners are also there to assist you in deciding how and where this research might be published.

There are various results between a 'pass' and 'fail' but it's very rare to slip up at this point of a PhD. Most Doctorate awards will be made upon the condition that a number of minor corrections are made, with re-submission requests far less common.

However, while the pass rate is high, the viva exam itself can still be intellectually demanding. This is because you'll be debating issues that are conceptually complex, so preparation is crucial to your success.

At the end of it, whatever the outcome, be prepared to take on board any advice, as the examiners are there to help you improve your argument or the presentation of your thesis.

2. Know your thesis inside out

While you can be sure this isn't a memory test - as you're fine bringing notes and a copy of your thesis with you to the PhD viva - it's still important to gain a good understanding of what you've written and be knowledge about your field of study.

You'll need to think carefully about where this original piece of work would be placed in the context of the wider body of research carried out in this field. Questions will surely be asked about this, as well as whether the project could possibly be developed further through any future research.

As you'll be explaining parts of the document to the examiners (who'll also have a digital or physical copy), make sure the pagination is the same in your version as the one they're looking at to avoid any issues regarding everybody being on the same page.

If you get stuck at any point during the viva exam, you can use looking at the thesis as an excuse to re-focus and gather your thoughts.

3. Anticipate the viva questions

The examiners will have prepared a series of questions for you to answer at the viva voce, but this is nothing to get too concerned about. The questions will all be based on your thesis - what it's about, what you did and what you found out - and why this matters, in relation to your field of study.

So when getting ready for the viva, consider the types of questions you're likely to be asked, including:

• What original contribution has your thesis made to this field of study?
• Explain the main research questions you were hoping to address.
• What are the strengths and weaknesses of your thesis?
• If you had to start the thesis again, what would you do differently?
• If funding was no object, describe how you'd follow on from this project.
• What are your plans for the future?

It can be helpful to practise your answers beforehand, ideally vocalising them by arranging a mock mini viva - although, as you aren't restricted in terms of referring to notes in the exam, you can leave room for spontaneity, and you don't need to learn it all off by heart. If your viva is being held online, you can ensure any technical issues are identified before the day by having a run through with your supervisor or a friend.

While it may sound simple, stick to answering the questions posed. It's really easy to go off on a tangent and this can open up other lines of enquiry from the examiners - possibly in areas you hadn't expected to be quizzed about.

On the other hand, it's completely fine to bring personality to your reasoning and use stories as a means of describing the learning process you've gone through and the techniques mastered over the last three or four years that have brought you to this point.

4. Learn about your examiners' own work

The senior and well-respected academics who'll be reading your thesis will have their own ideas on conducting PhD standard research. Therefore, it's worth taking a look online at their academic profiles to discover if there's any correlation with the research they've had published and your own work.

From this, you should be able to gain a better idea of their motivations, their possible views on your thesis and the kinds of questions they might wish to discuss after having read through it.

You should research up-to-date theories, read any recent papers on the subject and speak to others who've recently had their own viva exam. Think about how your work differentiates from the research carried out by others in your chosen field.

Prepare to provide any supporting evidence asked of you by the examiners - for example, they may request to see experimental data you mention once the exam is over.

It's also necessary to check the policies and practices in place at your university and be sure of what the roles of the examiners are and how the viva panel will be structured. In many cases, Doctoral students can choose the examiners conducting the PhD viva.

5. Plan towards the viva exam

From the moment you know the date of your viva voce, work backwards and plan the steps you'll need to take before the day itself. Allow enough time to assess and review your work so that as the day approaches, you can focus on the practicalities.

This encompasses everything from making sure you relax, eat and sleep well the day before to arranging transport so you get to the viva on time - if you're attending in person.

An online PhD viva will present its own challenges, so ensure your working space is presentable and you still make an effort in terms of what you'll be wearing.

It's always advisable to adhere to interview etiquette and go with something that's both smart and comfortable. By looking the part, this should get you in the right frame of mind to communicate in a professional manner.

In the build-up, avoid any situations that might make you feel stressed and instead try to adopt a positive attitude, one that results in a genuine eagerness to engage in a debate about the work you've been toiling over for a substantial period of time.

If you're travelling to the examination, be sure to check that you have everything you wish to take with you, including the thesis, plus any notes or other materials that will help support your claims.

The PhD viva can last between one and four hours - usually two - so it's necessary to pace yourself to get off to the best possible start.

Remember, the examiners aren't trying to trip you up - they want you to pass and are primarily there to hear you talk about your project. So, after the polite introductions they'll typically start with an icebreaker to put you at ease and help calm the nerves.

It's meant to be an open and honest conversation about your work, so feel free to politely disagree with the examiners, especially on areas you feel strongly about. Don't forget to use examples from your thesis to back up what you're saying, remembering to be clear and concise.

If you know your way around your thesis and can explain your thinking and way of working, this test shouldn't be a problem. And if you don't know the answer to a specific question - admit it, as it's better to concede your limitations in an area than ramble on and hope they don't notice you're struggling to come up with an explanation. No research is perfect, so it's important to appreciate this during the discussion - but don't be too overcritical about your work either, as that's not your job.

Finally, as the PhD viva can quickly move from a series of friendly questions to those that are more in-depth, take some time to think before answering. Don't worry about any periods of silence from the examiners, as this certainly isn't an indication that you're doing badly.

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• Introduction

What is a viva?

Preparing for your viva, getting your results, dealing with corrections and revisions, useful links for research postgraduates.

• Study Advice Helping students to achieve study success with guides, video tutorials, seminars and one-to-one advice sessions.

• Doctoral and Researcher College Bringing together research postgraduates at the University of Reading.
• Guides to research student policies and procedures (Doctoral and Researcher College) Guides specifically aimed at doctoral students to accompany some of the University's formal policies. Includes the 'Keeping on track and 'Surviving your viva' guides.
• Reading Researcher Development Programme (RRDP) Training programme aimed at the needs of research postgraduates.
• Doing a doctorate (Vitae) A range of guides taking you through the beginning, middle and completion phases of a PhD.
• Academic English Programme (AEP) If you are studying in English as a second or additional language, the Academic English Programme offers courses, webinars and 1:1 consultations to help you improve your academic English while you study. The Academic English Programme (AEP) is free to all fee-paying international/EU students.

Hopefully you will have had some experience of discussing your research either in seminars, progress reviews, or at conferences and you can build on this when preparing for your viva. Supervisors may offer the chance to do a practice, or mock-viva, which can be a very useful experience.

Reminding yourself that you are the expert in your research, and anticipating a range of possible questions will help you prepare thoroughly for having a good viva. The advice on this page offers further suggestions and strategies for viva success.

A viva voce is an oral examination (usually referred to as a viva). In some courses, students are given vivas as part of the undergraduate or Masters assessment process. However, it is more usually found as part of the final assessment process for PhD students.

Its main purpose is to assess your research and subject knowledge . The viva will generally be conducted by an external examiner and an internal examiner. Although the format may vary, it will involve a discussion of your research topics and conclusions. You will be asked questions that will give you the opportunity to show the examiners your research skills and the originality of your ideas.

In some academic cultures, this examination is known as a 'thesis defence'. However, in the UK, it is more commonly seen as a dialogue: an opportunity for you to explain and expand on your research to examiners who are experts in your field.

Format  - Make sure you know what the format will be. It may be helpful to look at the University's Rules for Submission of Theses and Guide for Examiners of higher degrees by research (link below). The Doctoral and Researcher College's 'Surviving the Viva' guide also has more explanation of the specific procedures here at Reading, and can be found as part of their Guides for Students. In addition, talk to people who have recently gone through the viva process in your department. Your viva will not be exactly the same as theirs, but it will give you a better idea of what might happen.

Prepare - It is crucial that you prepare well for your viva. This will help calm your nerves and also ensure that you make a good impression on the examiners. Know your thesis well; reread it and annotate it - you will be expected to take a copy into the viva, and it will be helpful if you can find key areas quickly. Also keep reading the latest research in your field - this will keep you aware of current developments and stimulate your thinking. If you find something new that you think you should have included, don't panic - just make a note and be prepared to talk about it in the viva.

Practise - Ask your supervisor if it is possible for you to have a practice viva. This will help you familiarise yourself with the whole process. For more suggestions about speaking in public, see our LibGuide on Giving presentations .

Who is your examiner?  - It will help you to feel more confident if you know a bit more about who will be examining you. Find your external examiner online and make sure you're familiar with their area of expertise and publications. You will not be expected to tailor your thesis to your examiner as it is your project and it should be able to be examined by anyone with sufficient expertise in the field. However, knowing your examiner's own research preferences may help you to see what areas of your thesis they will be most interested in discussing. Finding a photograph may also help to calm your nerves.

Make a list of possible questions - There may be obvious questions you're likely to be asked, and preparing the answers to these questions is always helpful. Some of the broad questions that most vivas will cover are:

• "What have been the significant contributions of your research?
• "What would you do differently if you were setting out to do it today?"
• "Where do you see this kind of research moving in the future?"

You might also want to think about anything in your thesis that is controversial or new. What would you say if you were asked about these?

Often the examiners will want to put you at your ease as much as possible, so may start with a general question to help calm you and establish a good relationship, for example:

• "Tell me about your research"
• "What motivated you to do research in this area?"
• "How did you develop an interest in this topic?"

These type of questions can be unnerving, even if they are not intended to be, as they seem very broad and simple. Think about how you might answer them clearly and concisely to get the viva off to a good start.

There are more examples of potential viva questions in the Graduate School's 'Surviving the Viva' in their Guides for Students

Explain it to a friend - When you've been working on a complex project for a number of years, it can be hard to see the bigger picture. It can help to get your ideas straight in your head if you have to give a simple explanation to someone outside of your topic.

Don't rush your answers - Take your time. Listen carefully and allow yourself time to process what the examiner has said, or ask for clarification. Your examiners are not expecting (or wanting) you to jump in with an answer as soon as they have finished speaking. Have a drink of water, or use phrases such as 'That's a good question' to give yourself time to think.

Discuss and explain - Don't answer questions with 'yes' or 'no', but justify your comments with examples or evidence. Some questions may explore areas of your thesis that show weaknesses. This is normal; your examiners are not expecting perfection and they recognise that all research has limitations. They want to see that you have thought about any weaknesses, the reasons behind them, and how these limitations may be overcome in future. Therefore, it is important to consider and explain any weaknesses, as opposed to trying to dismiss or hide them.

Answer with confidence but don't be defensive . The examiners are likely to challenge you in a constructive way and press you to justify your approach and findings, but they are not there with the intention of failing you - they want to hear what you have to say about your work.

Stay calm - Don't forget, this is the one exam where you are likely to know more about the subject than those giving the marks! The examiners want to get the best out of you. As long as you do the preparation, you'll be fine.

• Thesis submission and examination Rules and procedures around the submission and examination of your thesis.
• Research student policies and procedures Information for graduate students.
• Giving presentations LibGuide Expert guidance on preparing and delivering presentations.
• Advice on vivas from the THES A useful article with tips from an academic experienced in examining theses.
• What happens in a viva? A short video made at the University of Reading to show what a viva might look like and offer some tips for the day.

In some cases you may be told the result of your viva straight away, but more often the examiners will ask you to leave the room and wait nearby while they take a little time to discuss before making a decision. The four possible outcomes are:

• The degree will be awarded 
• The degree will be awarded subject to minor corrections (to be completed within three months) 
• The student is required to make major amendments (to be completed within 12 months)
• The student will not be awarded the degree for which the thesis is submitted (in some cases the examiners might award an alternative degree).

It is very unusual to pass without any changes - almost everyone has to make some revisions.  

The outcome of a viva is not usually a clear pass / fail result. Nearly all students will have to make changes, ranging from minor corrections to major amendments. Being asked to make revisions means having the chance to improve your work in light of the comments of experts in your field - it does not mean you have 'failed'. It will also strengthen your work for the future.

Understandably most postgraduate students see their viva as the end of their PhD journey, but for almost everybody there will be a few more steps to go. It may be difficult for you to get back into working mode when you thought you had finished. Below are some suggestions to help you manage your corrections and revisions, and get your changes done.

Allow yourself some time off

Give yourself a chance to recover and refocus on your goals Remember your reasons for doing a PhD and use these aims to motivate yourself in the final stages

Get another perspective

Having been involved in intense study activity (and probably anxiety) in the run-up to your viva, it is not surprising if you find yourself feeling quite emotional and even confused afterwards. This can be the case whether you have passed without corrections, have minor amendments or major revisions to complete.

Many students have found that talking to someone who has not been involved can help to put the whole experience into perspective. This might be a Study Adviser, who can also help with your organisation and time management to get revisions completed, or someone from Student Wellbeing.

Get the list of corrections

The examiners will produce a list of the changes they require you to make. This will usually be forwarded to you from the Examinations Office or via your department.

Make sure you get this as soon as possible, as you will need to demonstrate that you have made all these changes satisfactorily; it will form the basis of what you do next.

See your supervisor - soon

Talk through with your supervisor what you plan to do for each correction, and check that this is what is needed. Arrange a deadline for making the changes and confirm that your supervisor will be available to give feedback on your changes.

You and your supervisor may decide that a fresh perspective is needed, so your supervisor might suggest a colleague that could advise on the corrections.

Clarify what you need to do

Check with the examiners (if possible) or your supervisor (if not) what they want for each correction. For example does "Expand on method in Chapter 3" mean write a few more sentences explaining the method, or add a whole new section to Chapter 3 going through the methodology in fine detail?

Draw up a timetable

Normally, minor corrections have to be made within 3 months, and major amendments need to be made within 1 year of the viva.

Draw up a realistic timetable for making the changes – taking into account outside pressures like your funding ending, returning home, finding a job, family commitments. Just like when you were writing the thesis, break the corrections into tasks that need to be done, and set aside specific times when you will do them.

Don't leave it too long

Although you might not want to look at your thesis ever again, it is better to get going while it is fresh in your mind. The longer you leave it, the harder it is to get started again.

• Start with the smaller tasks that are easier to complete, like correcting typos, to get back into the flow of working.
• Recognise when you are procrastinating and overcome this by setting yourself small goals and rewards.

Stay focused

Don't agonise about getting changes "perfect" and reworking the whole thesis. At this stage you need to be clear what the examiners want and give it to them. Be thorough, but be efficient. It is well worth spending time getting the corrections right as they will strengthen your thesis, but also recognise when you may be going beyond the bounds of what is required, and try to be as business-like and objective about making the corrections as you can.

Check the changes with your supervisor

You don't want to have to make any further corrections after your resubmission, so check with your supervisor that you have covered everything the examiners require.

Your supervisor may be able to point out places that you can strengthen or reword to ensure you meet the examiners' criteria.

Once you and your supervisor are happy that you have made all the necessary corrections and completed them thoroughly – resubmit the thesis.

Ensure you are clear on the University procedures for resubmission – the examiners may have the option of asking for a second viva.

Remember: In years to come no one will ever ask you about your corrections. Many top academics had to make major changes to their theses and this has helped, not harmed, their careers.

• Student wellbeing Online guides, Life Tools talks and counselling appointments.

Appeals are possible in the case of irregularities in the examination procedure, exceptional circumstances, or evidence of prejudice and bias. Appeals cannot be made against the academic judgement of examiners. Check the University procedures for appeals (which can be obtained from the Examinations Office) and contact your supervisor or department if you are considering appealing. You may also find it helpful to discuss your reasons for appealing with a Reading University Student Union Student Adviser who will be able to give you confidential advice on your appeal options.

• Student Advice service (Reading University Student Union) Confidential advice from Reading University Students Union.
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Thesis outcomes and corrections

There will usually be a bit more work to do after the viva. Each institution will have its own regulations about viva outcomes and how to inform the candidate of them. Find out before you go into your viva so that you know what to expect. In the UK they typically they fall into one of the following categories:

• Outright pass. Your work needs no corrections
• Minor corrections. Your examiners have a few minor suggestions that they would like you to incorporate
• Major corrections or resubmission. The thesis needs further work to be of doctoral standard. This might include more research, rewriting sections or including new literature
• Suggestion that you resubmit for, or are awarded, a lower degree (MPhil or MSc). Research is of good quality but too narrow for a doctorate
• Outright fail. Usually used only in cases of plagiarism or where the examiners judge that the candidate will never be able to complete a doctorate.

Most candidates fall within the minor or major corrections categories. This means that you will have some corrections to complete. However, regardless of the number of corrections that you have to do most people who reach the viva stage do  go on to get their doctorate relatively quickly.

Thesis corrections

After your viva you are likely to have some corrections to complete before you are awarded your doctorate. The extent can range from a few spelling mistakes to rewriting or adding complete chapters. You may be given a deadline by your examiners or your institution but regardless of this, it is best to aim to complete your corrections as soon as possible to use the momentum acquired during thesis writing.

In order to be sure that your corrections make the right changes:

• take notes during the viva and write them up immediately after
• meet with your main supervisor to discuss the changes that you need to make
• analyse the examiners' report carefully to make sure that you have dealt with all of the issues that they raise
• proofread your work again.

Thesis resubmission

Your examiners, or often just the internal examiner, will check that all corrections have been incorporated, and then you can resubmit your thesis. Your institution will have regulations on the format of the final submitted thesis copy of your thesis, which will usually be deposited in the institutional library. It has become more common for institutions to request the submission of an electronic copy for ease of cataloguing and searching.

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Common PhD Viva Questions (To Help You Prepare For Yours)

May 27, 2022

Capable of striking fear into the heart of even the most confident PhD student, the Viva looms large over the entire PhD journey. No matter whether the PhD is going well or causing problems, there’s always the viva to worry about.

Long story short, everyone is scared of the viva.

One thing that can help is knowing what to expect during the viva itself. That’s why we got in touch with Professor Peter Smith, who recently published The PhD Viva: How to Prepare for Your Oral Examination with Palgrave, and who has successfully supervised 60+ PhD and professional doctorate students and examined a further 50+ PhD students all over the world. We asked him what the most common questions are that students face during their vivas. Read his answer below.

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1. An Opening Question

The examiners will quite often start a viva with an opening question; perhaps something like this: “Spend five or ten minutes telling us about your work, what you have done, and what the contribution is” or “Summarise your work for us, in a single sentence.” A question like this gives you an opportunity to explain your work up front, breaks the ice, settles you in and gets you talking. Making a contribution is the most important element of the PhD thesis. It is very likely that you will be questioned about this.

2.  The aims, objectives, research questions, and hypotheses

In your thesis you will have set out the purpose of your work. Depending on the discipline that you working in, you may have called this an aim (with accompanying objectives), a question (or a series of questions) or an hypothesis (or a series of hypotheses). It doesn’t matter what you have called this in your thesis; you need to be prepared to explain and justify it to the examiners. Typical questions might be “explain your research question and how you derived it.”

 3. Coverage of the literature

The examiners will want to be sure that you understand the literature which underpins your work. An important criterion for the award of PhD in that the candidate demonstrates knowledge of the relevant work of other researchers in your field. So it is likely that they will ask some questions which test your knowledge of the academic literature within your subject. You may, for example be asked: “Which are the three most important papers which relate to your thesis?”, “Whose work has most influenced yours, and why?”, or “Whose work is the closest to yours?” and “How is your work different to theirs?”

Your PhD Thesis. On one page.

4. methodological questions.

The methodology, and the approach you have taken, is another area that the examiners are likely to want to discuss. This could come in the form of a question asking you to justify your approach: “Why did you choose to use a qualitative approach?” and “What alternative approaches might you have chosen?” or more detailed questions about the methods used: “Why did you use focus groups rather than interviews?” or “How did you select the group of people to interview?”

Most PhD’s have some ethical issues which they need to be considered. This may take the form of a specific question such as: “Explain the ethical protocols and approval procedures which you followed” or “Did you obtain informed consent?”, or a more general question, such as: “What are the ethical implications of your work?”.

6. Decisions you made

Along the way, you will have had to take several decisions as to the next step to take. The examiners may ask you to discuss and justify these. This could take the form of a very general question: “What was the most important decision that you had to make during the course of your PhD?”; “Which decisions would you change if you were to do the work again?” or something much more specific: “Why did you choose to test your system on this group of people?”

7. Evaluation

It is always important to show that you have evaluated the work that you have done. Typical questions could be: “How did you set about evaluating the work you did?”, “How does your work compare to that of others?”, “What is the strongest point of your work?”, “Which part of your thesis are you most proud of, and why?”, and “Which is the weakest part of your work?”.

8. Future Work

Examiners will almost always ask about possible areas for future work. Questions could be: “If you had another year, what would you do?” or “How would you continue with the work? What are the next steps?”

Wrapping up

With the right preparation and mindset, the viva is nothing to be scared of. Work through model answers to the questions above, have a good read of your thesis, and have faith that you know your research better than anyone else. Then, on the day, try to have fun.

If you want to be as prepared as possible for your viva, book yourself onto a one-on-one mock viva with Professor Smith. Boost your confidence with a full practice run before the big day.  Click here to find out more. 

Prepare for your viva. One question at a time.

Prepare answers to the most common PhD viva questions with this interactive template. It’s free to download and it’s yours to keep forever.

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Ace Your Viva Presentation: Tips and Tricks

The thought of an oral presentation can be a huge source of stress and anxiety for many students, while some just blossom in such situations. If you’re one of the former, though, don’t panic. With decent preparation and practice, you too can successfully master your viva presentation.

But first: what is a viva presentation?

Viva voce is a Latin phrase most often translated as “by word of mouth.”  In academic circles, a viva presentation is an oral exam in which you defend your thesis.

After the thesis is defended, it’s discussed by a small panel. Among those present are the examining professors, but there may also be research assistants, members of the relevant department or even fellow students.

The purpose of this defense is to show examiners how knowledgeable you are on your research topic, that you have internalized what you have learned and know how to apply it.  In effect, it shows that you are well prepared to enter into academic discussion.

In principle, the viva presentation won’t make an entire grade’s difference, but it can tip the proverbial scale in your favor. It does offer some major advantages: You can clear up any ambiguities, assuage any doubts your examiners may have, and show that your stand by your research.

Preparation is key

After months or even years of hard work, the thesis is finished, the last formatting mistakes corrected, the bibliography painstakingly checked one last time and hooray, it’s finished! Time to celebrate! And then you get an invitation to the viva …

So, the wine bottle is re-corked and it’s back to the desk. But the good news is: you’ve actually already done most of the preparation. That’s what all the in-depth research you did to create your thesis was. You’re already an expert on your topic, so now you just need to explain it to your examiners clearly and calmly. That’s why it doesn’t make sense to start preparing for your viva before your thesis is finished and you’ve answered all your own questions.

Your supervisor should already know what to expect and the purpose of the viva is to present your results. Some people just hand in their thesis with huge relief and then put the whole thing out of their mind for a while.

This isn’t necessarily a problem but when the viva presentation is due, you really need to give yourself time to familiarize yourself with the topic again. Re-read your thesis a few times to get your results and methods fresh in your mind and you’ve already done much of the prep work for your viva.

Organizational details

You need to check the examination regulations of your institution to find out what will be required of you during your viva presentation. How long should the presentation last? Who will be present? How will the discussion group be structured at the end? Studies have shown that anxiety is significantly lessened if you know exactly what to expect. Don’t ignore these details.

Make sure you have the right power supply for the projector and whether your slide format is compatible with the projector. An article on slide formats and the difference between 4:3 and 16:9 can be found here .

Know how long your presentation should be. This often depends on what type of work you’re presenting. Be sure to keep this in mind as you create your slides.

Also, think about whether or not you want to provide a handout. Even if it isn’t explicitly required, examiners will often use a handout as a guide when asking their questions, allowing you to better control the discussion that follows.

You can find helpful tips on handouts here .

Lastly, think about what you’re going to wear for your viva presentation. If you’re not sure, take a cue from your examiners. If they wear a suit or dress to other viva presentations, it’s safe to assume that the dress code for your viva will be on the formal side. It’s important to look neat and tidy, but you should also feel comfortable. The wrong shoes or clothing that is too tight can negatively impact the way you present. You can find more helpful tips on clothing here .

Technical details

The most popular tool for giving a viva presentation is PowerPoint. On the day of your presentation, get there early to make sure your devices are working. It also helps to be familiar with PowerPoint’s features, such as Presenter View. This fantastic tool will help you stay on track during your viva presentation. For more information on Presenter View, click here .

In general, the rule for viva presentations is: Keep It Simple . This is a defense of your academic research and your slides should express that. Keep it classic and factual. Use a uniform font and a neutral, preferably white, background. You can use backgrounds from PresentationLoad:

In principle, you should use as little text and as few key points as possible, but it’s also essential to document your research accurately. Room for interpretation can be very dangerous here.

Naturally, it depends on the preferences of the examiners, but a little more text than in normal presentations is definitely allowed. If the nature of your work allows, graphics, photos or flowcharts are a good way to offer some variety and to clearly present complex issues.

How to structure a successful viva presentation

Like your thesis, your viva PowerPoint presentation should follow a certain structure. It is advisable to follow the structure of your thesis. After all, you have already given it a lot of thought and made sure that everything is in a logical context.

This way you can save yourself additional work. But remember – the presentation is not about retelling your thesis word for word. Just give the most important and interesting aspects.

Follow these points to create a solid structure for any viva presentation:

1) Relevance

Your thesis dealt in depth with a particular question, a specific aspect of research. In the first part of your viva PowerPoint presentation you introduce it and explain why it is relevant. What is the benefit for academic understanding, the general public, a specific avenue? Why this question in particular?

This allows you to show your audience why you chose your topic and why they should pay attention to what you have to say. All this needs to be supported by a professional introduction. You can find tips on how to do this here .

2) Background

This is where you set out the background of your research question in more detail, i.e. the most important theories and approaches that already exist on the topic, or which prompted your question. This helps your listeners prepare for any complex interrelationships, and clarifies the basis on which you have built your work.

In this part you set out how you approached your work. Was your research qualitative or quantitative? Did you conduct interviews, analyze data, evaluate a particular body of literature? This is your chance to show your examiners how carefully you worked and explain why you chose this particular method.

4) Findings

Now to present the results of your research. Were there any surprises? If so, how did you deal with them? Are the results consistent, where did you encounter difficulties, and how did you solve them? Use this section to talk about your research in a transparent and honest way. It’s an opportunity to show that you have dealt with the topic seriously and in depth, rather than just choosing the easiest way.

5) Conclusion

At the end, summarize your work clearly and concisely, and answer the research question posed at the beginning. You can also express your personal opinion as to whether you have achieved the result you expected or whether your research has come to a surprising conclusion.

Finally, you will need a well-rounded conclusion to your viva presentation. You can read tips for the perfect presentation ending here .

Whether you have to present your sources at the end of your viva is something to discuss with your supervisor or read up in the regulations. If in doubt, however, it’s better to be on the safe side with a list of sources.

Viva presentation: example

Since every viva is different, there is no one example of a great PowerPoint viva presentation. In our blog you will find numerous examples of how a well-structured and appealing PowerPoint presentation can look. For example, here . These should serve as a guide; it’s important to adapt the presentation to your personal requirements and your audience.

Make sure your narrative is clear and consistent throughout your presentation (as it was in your thesis).  It might be a good idea to ask your supervisor to show you good viva presentation example from previous years or to give you tips on where you should focus your attention.

General tips for a successful presentation

Almost there! You’ve created and double-checked your PowerPoint viva presentation and you’re feeling confident about your research work. For many people, though, creating the content is the easy bit; it’s the thought of speaking in front of others that terrifies them. It’s just a fact that in order to defend a thesis, you first have to be attacked .

1. Be prepared for critical questions and comments. Think through what possible aspects of your work might attract criticism, and prepare your rebuttals in advance. It helps to let friends or family read your work and ask questions.

2. The same friends and family can be amazingly useful as a practice audience. Deliver your presentation a few times in front of others and in a relaxed environment. This will help you feel more confident when it comes time for your viva presentation. Your trial audience may discover inconsistencies you’d missed, and can often provide valuable feedback on how your slides look, your speaking style or your body language.

3. Body language is very important when you’re giving your presentation; it can affect your persuasiveness. Stand upright (or sit if you need to). A small amount of movement can emphasize your engagement with the subject, but try not to look restless.  Getting your words across means you mustn’t turn your face away from the audience. Small gestures can underline your words, but too much fidgeting will look like nerves. 

Practising giving your presentation will soon get your body language expressing ease and confidence. To learn how to best prepare for a presentation, read our blog article on the right body language

4. Many people tend to speak far too quickly in presentations, probably to get the whole thing over as quickly as possible. While this is understandable, it means the audience misses half your words! Try to breathe calmly and speak evenly.

Time can seem to speed up when you’re in a stressful situation, so speak more slowly than you think right. And taking a proper breath in between phrases will help ground you.  You can find tips on how to prepare your speaking voice for your viva presentation in this blog post .

Your test audience can give you very good feedback here. When you practice your presentation, use a stopwatch to make sure that you stay within the given limits. Once you know that you won’t overrun even when speaking calmly, you can avoid the temptation to rush during the official presentation.

5. Pro tip: Do you have to give your viva presentation online? If so, some things will of course be different, starting with what program you use to stream your presentation. You can find out what options you have in this blog post . Click here to read more about what to pay attention to when giving an online presentation.

While knowing what you want to say is important, DON’T try to learn your entire presentation by heart. Even if you somehow did manage to, it would end up sounding artificial and you could be easily thrown off track if you miss a word or someone interrupts with a question. The best strategy is to memorize a few key points and speak freely.

Take a deep breath before you start and remember that you have no reason to be nervous. Nobody knows your work as well as you do; you’ve done all the research and can consider yourself an expert on your topic.

And if a mistake does happen, here are some tips on how to react to it with confidence.

If the examiners seem receptive to it, a little small talk before you start can help you to relax. And once you start, remember that you’ve practiced hard and are well prepared to give an impressive viva presentation. Good luck!

Any questions about this article or need help creating a viva presentation? Feel free to contact us at [email protected] for tips. We’d love to help.

We’ve already shared a lot of links with tips on how to improve your presentation . Here are some more that may interest you:

• PowerPoint animations
• PowerPoint Morph
• Humor in presentations
• Add images to your presentation with an app
• PowerPoint slide master
• The right presentation background
• How to create flowcharts

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Viva, Soutenance, Disputation: How PhD Students around the World Defend Their Thesis | Lex Academic Blog

22 November 2021

Our recent posts on avoiding major and minor PhD corrections focused primarily on the run-up to and aftermath of defending a thesis in the UK. It occurred to us that for students considering a PhD, or established UK-based academics who have been asked to examine a PhD abroad, it would be useful to know how students in different countries defend their thesis. For the sake of readers unfamiliar with the UK system, let’s begin with a summary. In the UK, students defend their thesis in front of two examiners, at least one of whom must be external to the student’s university, in an examination called a viva voce , or viva. After the exam, the examiners make one of four recommendations: pass with no corrections, pass with minor corrections, pass with major corrections, or fail – resubmission. The majority of students pass with corrections (for more on the difference between minor and major corrections, click the links above), which the student must implement before they can be awarded their degree.

Like those in the UK, students in the US and Australia are usually required to make amendments to their thesis after examination. PhD programmes in the US require students to take and pass oral examinations, or ‘defences’, at regular intervals. Unlike in the UK, where students rarely know their examiners well, as this testimony shows, students in the US system are examined by the same committee throughout their studies. In Australia, the process of submitting and defending a thesis seems to vary between institutions. At the University of Sydney , for instance, students, in consultation with their supervisor, choose between a viva-like oral examination and a thesis-only examination, where the examiners each produce an extensive review of the thesis. The University of Melbourne requires students to present their research at a public completion seminar in the six months before submission.

In many European countries, the concept of PhD corrections doesn’t exist. At the Freie Universität Berlin in Germany, students are awarded a grade ( summa cum laude (distinction), magna cum laude (very good), etc.) for their doctorate, based on the thesis itself and their performance at their viva, or Disputation . Once the thesis has been corrected by the examiners, it is made available for viewing by postdoctoral members of the student’s department before the Disputation . Students in Germany must also publish their thesis in order to receive their award. Unlike a viva in the UK, a French soutenance is a public event. Students defend their thesis in front of a jury , or panel, of examiners. The supervisor, who in the UK may attend a viva but is prohibited from speaking, is usually a member of the panel. The student first gives a presentation about their thesis topic and then responds to questions from each examiner. Unlike in the UK, students in the French system don’t make corrections to the thesis after defending. Instead, the examiners produce a report on the strengths and weaknesses of the thesis, which is a key part of academic job applications, even for senior positions.

In Scandinavian countries, the defence of a PhD thesis is often a ceremonial, highly coded event (this piece by an American academic who was the external examiner for a thesis at a Swedish university describes how the student had to nail – literally – their abstract to a plank in a department common room as a symbol of the public release of the thesis!). At Halmstad University in Sweden, the student defends their thesis publicly and in the presence of an external specialist known as the ‘opponent’. The student may present their thesis, but it’s also possible for the opponent to present the thesis and compare it to existing research in the field. A similar system is used at the University of Helsinki in Finland, where traditionally a strict formal dress code must be adhered to. These codes may sound rather daunting, but in practice few students fail their defence (and the rules on dress are now the subject of debate). The public event is usually cancelled if an examiner deems the work to be below doctoral standard.

Because the process of submitting and defending a thesis varies considerably between countries, students thinking about a PhD, as well as those advising them, would be wise to make this process, as well as other factors like funding and duration, a part of their decision making when applying to universities. Even if you don’t really mind how your thesis is examined, it’s good to know what you’re letting yourself in for.

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