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How to prepare an excellent thesis defense

What is a thesis defense?

How long is a thesis defense, what happens at a thesis defense, your presentation, questions from the committee, 6 tips to help you prepare for your thesis defense, 1. anticipate questions and prepare for them, 2. dress for success, 3. ask for help, as needed, 4. have a backup plan, 5. prepare for the possibility that you might not know an answer, 6. de-stress before, during, and after, frequently asked questions about preparing an excellent thesis defense, related articles.

If you're about to complete, or have ever completed a graduate degree, you have most likely come across the term "thesis defense." In many countries, to finish a graduate degree, you have to write a thesis .

A thesis is a large paper, or multi-chapter work, based on a topic relating to your field of study.

Once you hand in your thesis, you will be assigned a date to defend your work. Your thesis defense meeting usually consists of you and a committee of two or more professors working in your program. It may also include other people, like professionals from other colleges or those who are working in your field.

During your thesis defense, you will be asked questions about your work. The main purpose of your thesis defense is for the committee to make sure that you actually understand your field and focus area.

The questions are usually open-ended and require the student to think critically about their work. By the time of your thesis defense, your paper has already been evaluated. The questions asked are not designed so that you actually have to aggressively "defend" your work; often, your thesis defense is more of a formality required so that you can get your degree.

• Check with your department about requirements and timing.
• Re-read your thesis.
• Anticipate questions and prepare for them.
• Create a back-up plan to deal with technology hiccups.
• Plan de-stressing activities both before, and after, your defense.

How long your oral thesis defense is depends largely on the institution and requirements of your degree. It is best to consult your department or institution about this. In general, a thesis defense may take only 20 minutes, but it may also take two hours or more. The length also depends on how much time is allocated to the presentation and questioning part.

Tip: Check with your department or institution as soon as possible to determine the approved length for a thesis defense.

First of all, be aware that a thesis defense varies from country to country. This is just a general overview, but a thesis defense can take many different formats. Some are closed, others are public defenses. Some take place with two committee members, some with more examiners.

The same goes for the length of your thesis defense, as mentioned above. The most important first step for you is to clarify with your department what the structure of your thesis defense will look like. In general, your thesis defense will include:

• your presentation of around 20-30 minutes
• questions from the committee
• questions from the audience (if the defense is public and the department allows it)

You might have to give a presentation, often with Powerpoint, Google slides, or Keynote slides. Make sure to prepare an appropriate amount of slides. A general rule is to use about 10 slides for a 20-minute presentation.

But that also depends on your specific topic and the way you present. The good news is that there will be plenty of time ahead of your thesis defense to prepare your slides and practice your presentation alone and in front of friends or family.

Tip: Practice delivering your thesis presentation in front of family, friends, or colleagues.

You can prepare your slides by using information from your thesis' first chapter (the overview of your thesis) as a framework or outline. Substantive information in your thesis should correspond with your slides.

Make sure your slides are of good quality— both in terms of the integrity of the information and the appearance. If you need more help with how to prepare your presentation slides, both the ASQ Higher Education Brief and James Hayton have good guidelines on the topic.

The committee will ask questions about your work after you finish your presentation. The questions will most likely be about the core content of your thesis, such as what you learned from the study you conducted. They may also ask you to summarize certain findings and to discuss how your work will contribute to the existing body of knowledge.

Tip: Read your entire thesis in preparation of the questions, so you have a refreshed perspective on your work.

While you are preparing, you can create a list of possible questions and try to answer them. You can foresee many of the questions you will get by simply spending some time rereading your thesis.

Here are a few tips on how to prepare for your thesis defense:

You can absolutely prepare for most of the questions you will be asked. Read through your thesis and while you're reading it, create a list of possible questions. In addition, since you will know who will be on the committee, look at the academic expertise of the committee members. In what areas would they most likely be focused?

If possible, sit at other thesis defenses with these committee members to get a feel for how they ask and what they ask. As a graduate student, you should generally be adept at anticipating test questions, so use this advantage to gather as much information as possible before your thesis defense meeting.

Your thesis defense is a formal event, often the entire department or university is invited to participate. It signals a critical rite of passage for graduate students and faculty who have supported them throughout a long and challenging process.

While most universities don't have specific rules on how to dress for that event, do regard it with dignity and respect. This one might be a no-brainer, but know that you should dress as if you were on a job interview or delivering a paper at a conference.

It might help you deal with your stress before your thesis defense to entrust someone with the smaller but important responsibilities of your defense well ahead of schedule. This trusted person could be responsible for:

• preparing the room of the day of defense
• setting up equipment for the presentation
• preparing and distributing handouts

Technology is unpredictable. Life is too. There are no guarantees that your Powerpoint presentation will work at all or look the way it is supposed to on the big screen. We've all been there. Make sure to have a plan B for these situations. Handouts can help when technology fails, and an additional clean shirt can save the day if you have a spill.

One of the scariest aspects of the defense is the possibility of being asked a question you can't answer. While you can prepare for some questions, you can never know exactly what the committee will ask.

There will always be gaps in your knowledge. But your thesis defense is not about being perfect and knowing everything, it's about how you deal with challenging situations. You are not expected to know everything.

James Hayton writes on his blog that examiners will sometimes even ask questions they don't know the answer to, out of curiosity, or because they want to see how you think. While it is ok sometimes to just say "I don't know", he advises to try something like "I don't know, but I would think [...] because of x and y, but you would need to do [...] in order to find out.” This shows that you have the ability to think as an academic.

You will be nervous. But your examiners will expect you to be nervous. Being well prepared can help minimize your stress, but do know that your examiners have seen this many times before and are willing to help, by repeating questions, for example. Dora Farkas at finishyourthesis.com notes that it’s a myth that thesis committees are out to get you.

Two common symptoms of being nervous are talking really fast and nervous laughs. Try to slow yourself down and take a deep breath. Remember what feels like hours to you are just a few seconds in real life.

• Try meditational breathing right before your defense.
• Get plenty of exercise and sleep in the weeks prior to your defense.
• Have your clothes or other items you need ready to go the night before.
• During your defense, allow yourself to process each question before answering.
• Go to dinner with friends and family, or to a fun activity like mini-golf, after your defense.

Allow yourself to process each question, respond to it, and stop talking once you have responded. While a smile can often help dissolve a difficult situation, remember that nervous laughs can be irritating for your audience.

We all make mistakes and your thesis defense will not be perfect. However, careful preparation, mindfulness, and confidence can help you feel less stressful both before, and during, your defense.

Finally, consider planning something fun that you can look forward to after your defense.

It is completely normal to be nervous. Being well prepared can help minimize your stress, but do know that your examiners have seen this many times before and are willing to help, by repeating questions for example if needed. Slow yourself down, and take a deep breath.

Your thesis defense is not about being perfect and knowing everything, it's about how you deal with challenging situations. James Hayton writes on his blog that it is ok sometimes to just say "I don't know", but he advises to try something like "I don't know, but I would think [...] because of x and y, you would need to do [...] in order to find out".

Your Powerpoint presentation can get stuck or not look the way it is supposed to do on the big screen. It can happen and your supervisors know it. In general, handouts can always save the day when technology fails.

• Dress for success.
• Ask for help setting up.
• Have a backup plan (in case technology fails you).
• Deal with your nerves.

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Defending Your Dissertation: A Guide

Written by Luke Wink-Moran | Photo by insta_photos

Dissertation defenses are daunting, and no wonder; it’s not a “dissertation discussion,” or a “dissertation dialogue.” The name alone implies that the dissertation you’ve spent the last x number of years working on is subject to attack. And if you don’t feel trepidation for semantic reasons, you might be nervous because you don’t know what to expect. Our imaginations are great at making The Unknown scarier than reality. The good news is that you’ll find in this newsletter article experts who can shed light on what dissertations defenses are really like, and what you can do to prepare for them.

The first thing you should know is that your defense has already begun. It started the minute you began working on your dissertation— maybe even in some of the classes you took beforehand that helped you formulate your ideas. This, according to Dr. Celeste Atkins, is why it’s so important to identify a good mentor early in graduate school.

“To me,” noted Dr. Atkins, who wrote her dissertation on how sociology faculty from traditionally marginalized backgrounds teach about privilege and inequality, “the most important part of the doctoral journey was finding an advisor who understood and supported what I wanted from my education and who was willing to challenge me and push me, while not delaying me.  I would encourage future PhDs to really take the time to get to know the faculty before choosing an advisor and to make sure that the members of their committee work well together.”

Your advisor will be the one who helps you refine arguments and strengthen your work so that by the time it reaches your dissertation committee, it’s ready. Next comes the writing process, which many students have said was the hardest part of their PhD. I’ve included this section on the writing process because this is where you’ll create all the material you’ll present during your defense, so it’s important to navigate it successfully. The writing process is intellectually grueling, it eats time and energy, and it’s where many students find themselves paddling frantically to avoid languishing in the “All-But-Dissertation” doldrums. The writing process is also likely to encroach on other parts of your life. For instance, Dr. Cynthia Trejo wrote her dissertation on college preparation for Latin American students while caring for a twelve-year-old, two adult children, and her aging parents—in the middle of a pandemic. When I asked Dr. Trejo how she did this, she replied:

“I don’t take the privilege of education for granted. My son knew I got up at 4:00 a.m. every morning, even on weekends, even on holidays; and it’s a blessing that he’s seen that work ethic and that dedication and the end result.”

Importantly, Dr. Trejo also exercised regularly and joined several online writing groups at UArizona. She mobilized her support network— her partner, parents, and even friends from high school to help care for her son.

The challenges you face during the writing process can vary by discipline. Jessika Iwanski is an MD/PhD student who in 2022 defended her dissertation on genetic mutations in sarcomeric proteins that lead to severe, neonatal dilated cardiomyopathy. She described her writing experience as “an intricate process of balancing many things at once with a deadline (defense day) that seems to be creeping up faster and faster— finishing up experiments, drafting the dissertation, preparing your presentation, filling out all the necessary documents for your defense and also, for MD/PhD students, beginning to reintegrate into the clinical world (reviewing your clinical knowledge and skill sets)!”

But no matter what your unique challenges are, writing a dissertation can take a toll on your mental health. Almost every student I spoke with said they saw a therapist and found their sessions enormously helpful. They also looked to the people in their lives for support. Dr. Betsy Labiner, who wrote her dissertation on Interiority, Truth, and Violence in Early Modern Drama, recommended, “Keep your loved ones close! This is so hard – the dissertation lends itself to isolation, especially in the final stages. Plus, a huge number of your family and friends simply won’t understand what you’re going through. But they love you and want to help and are great for getting you out of your head and into a space where you can enjoy life even when you feel like your dissertation is a flaming heap of trash.”

While you might sometimes feel like your dissertation is a flaming heap of trash, remember: a) no it’s not, you brilliant scholar, and b) the best dissertations aren’t necessarily perfect dissertations. According to Dr. Trejo, “The best dissertation is a done dissertation.” So don’t get hung up on perfecting every detail of your work. Think of your dissertation as a long-form assignment that you need to finish in order to move onto the next stage of your career. Many students continue revising after graduation and submit their work for publication or other professional objectives.

When you do finish writing your dissertation, it’s time to schedule your defense and invite friends and family to the part of the exam that’s open to the public. When that moment comes, how do you prepare to present your work and field questions about it?

“I reread my dissertation in full in one sitting,” said Dr. Labiner. “During all my time writing it, I’d never read more than one complete chapter at a time! It was a huge confidence boost to read my work in full and realize that I had produced a compelling, engaging, original argument.”

There are many other ways to prepare: create presentation slides and practice presenting them to friends or alone; think of questions you might be asked and answer them; think about what you want to wear or where you might want to sit (if you’re presenting on Zoom) that might give you a confidence boost. Iwanksi practiced presenting with her mentor and reviewed current papers to anticipate what questions her committee might ask.  If you want to really get in the zone, you can emulate Dr. Labiner and do a full dress rehearsal on Zoom the day before your defense.

But no matter what you do, you’ll still be nervous:

“I had a sense of the logistics, the timing, and so on, but I didn’t really have clear expectations outside of the structure. It was a sort of nebulous three hours in which I expected to be nauseatingly terrified,” recalled Dr. Labiner.

“I expected it to be terrifying, with lots of difficult questions and constructive criticism/comments given,” agreed Iwanski.

“I expected it to be very scary,” said Dr. Trejo.

“I expected it to be like I was on trial, and I’d have to defend myself and prove I deserved a PhD,” said Dr Atkins.

And, eventually, inexorably, it will be time to present.  

“It was actually very enjoyable” said Iwanski. “It was more of a celebration of years of work put into this project—not only by me but by my mentor, colleagues, lab members and collaborators! I felt very supported by all my committee members and, rather than it being a rapid fire of questions, it was more of a scientific discussion amongst colleagues who are passionate about heart disease and muscle biology.”

“I was anxious right when I logged on to the Zoom call for it,” said Dr. Labiner, “but I was blown away by the number of family and friends that showed up to support me. I had invited a lot of people who I didn’t at all think would come, but every single person I invited was there! Having about 40 guests – many of them joining from different states and several from different countries! – made me feel so loved and celebrated that my nerves were steadied very quickly. It also helped me go into ‘teaching mode’ about my work, so it felt like getting to lead a seminar on my most favorite literature.”

“In reality, my dissertation defense was similar to presenting at an academic conference,” said Dr. Atkins. “I went over my research in a practiced and organized way, and I fielded questions from the audience.

“It was a celebration and an important benchmark for me,” said Dr. Trejo. “It was a pretty happy day. Like the punctuation at the end of your sentence: this sentence is done; this journey is done. You can start the next sentence.”

If you want to learn more about dissertations in your own discipline, don’t hesitate to reach out to graduates from your program and ask them about their experiences. If you’d like to avail yourself of some of the resources that helped students in this article while they wrote and defended their dissertations, check out these links:

The Graduate Writing Lab

https://thinktank.arizona.edu/writing-center/graduate-writing-lab

The Writing Skills Improvement Program

https://wsip.arizona.edu

Campus Health Counseling and Psych Services

https://caps.arizona.edu

https://www.scribbr.com/

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17 Thesis Defense Questions and How to Answer Them

A thesis defense gives you the chance to show off your thesis work and demonstrate your expertise in your field of study. During this one- to two-hour discussion with the members of your thesis committee, you'll have some control over how you present your research, but your committee will ask you some prodding questions to test your knowledge and preparedness. They will all have read your thesis beforehand, so their questions will relate to your study, topic, methods, data sample, and other aspects.

A good defense requires mastery of the thesis itself, so before you consider the questions you might face,

1. What is your topic, and why did you choose it?

Give a quick summary in just a few sentences on what you've researched. You could certainly go on for hours about your work, but make sure you prepare a way to give a very brief overview of your thesis. Then, give a quick background on your process for choosing this topic.

2. How does your topic contribute to the existing literature? How is it important?

Many researchers identify a need in the field and choose a topic to bridge the gaps that previous literature has failed to cover. For example, previous studies might not have included a certain population, region, or circumstance. Talk about how your thesis enhances the general understanding of the topic to extend the reach beyond what others have found, and then give examples of why the world needs that increased understanding. For instance, a thesis on romaine lettuce crops in desert climates might bring much-needed knowledge to a region that might not have been represented in previous work.

3. What are the key findings of your study?

When reporting your main results, make sure you have a handle on how detailed your committee wants you to be. Give yourself several options by preparing 1) a very general, quick summary of your findings that takes a minute or less, 2) a more detailed rundown of what your study revealed that is 3-5 minutes long, and 3) a 10- to 15-minute synopsis that delves into your results in detail. With each of these responses prepared, you can gauge which one is most appropriate in the moment, based on what your committee asks you and what has already been requested.

4. What type of background research did you do for your study?

Here you'll describe what you did while you were deciding what to study. This usually includes a literary review to determine what previous researchers have already introduced to the field. You also likely had to look into whether your study was going to be possible and what you would need in order to collect the needed data. Did you need info from databases that require permissions or fees?

5. What was your hypothesis, and how did you form it?

Describe the expected results you had for your study and whether your hypothesis came from previous research experience, long-held expectations, or cultural myths.

6. What limitations did you face when writing your text?

It's inevitable — researchers will face roadblocks or limiting factors during their work. This could be a limited population you had access to, like if you had a great method of surveying university students, but you didn't have a way to reach out to other people who weren't attending that school.

7. Why did you choose your particular method for your study?

Different research methods are more fitting to specific studies than others (e.g., qualitative vs. quantitative ), and knowing this, you applied a method that would present your findings most effectively. What factors led you to choose your method?

8. Who formed the sample group of your study, and why did you choose this population?

Many factors go into the selection of a participant group. Perhaps you were motivated to survey women over 50 who experience burnout in the workplace. Did you take extra measures to target this population? Or perhaps you found a sample group that responded more readily to your request for participation, and after hitting dead ends for months, convenience is what shaped your study population. Make sure to present your reasoning in an honest but favorable way.

9. What obstacles or limitations did you encounter while working with your sample?

Outline the process of pursuing respondents for your study and the difficulties you faced in collecting enough quality data for your thesis. Perhaps the decisions you made took shape based on the participants you ended up interviewing.

10. Was there something specific you were expecting to find during your analysis?

Expectations are natural when you set out to explore a topic, especially one you've been dancing around throughout your academic career. This question can refer to your hypotheses , but it can also touch on your personal feelings and expectations about this topic. What did you believe you would find when you dove deeper into the subject? Was that what you actually found, or were you surprised by your results?

11. What did you learn from your study?

Your response to this question can include not only the basic findings of your work (if you haven't covered this already) but also some personal surprises you might have found that veered away from your expectations. Sometimes these details are not included in the thesis, so these details can add some spice to your defense.

12. What are the recommendations from your study?

With connection to the reasons you chose the topic, your results can address the problems your work is solving. Give specifics on how policymakers, professionals in the field, etc., can improve their service with the knowledge your thesis provides.

13. If given the chance, what would you do differently?

Your response to this one can include the limitations you encountered or dead ends you hit that wasted time and funding. Try not to dwell too long on the annoyances of your study, and consider an area of curiosity; for example, discuss an area that piqued your interest during your exploration that would have been exciting to pursue but didn't directly benefit your outlined study.

14. How did you relate your study to the existing theories in the literature?

Your paper likely ties your ideas into those of other researchers, so this could be an easy one to answer. Point out how similar your work is to some and how it contrasts other works of research; both contribute greatly to the overall body of research.

15. What is the future scope of this study?

This one is pretty easy, since most theses include recommendations for future research within the text. That means you already have this one covered, and since you read over your thesis before your defense, it's already fresh in your mind.

16. What do you plan to do professionally after you complete your study?

This is a question directed more to you and your future professional plans. This might align with the research you performed, and if so, you can direct your question back to your research, maybe mentioning the personal motivations you have for pursuing study of that subject.

17. Do you have any questions?

Although your thesis defense feels like an interrogation, and you're the one in the spotlight, it provides an ideal opportunity to gather input from your committee, if you want it. Possible questions you could ask are: What were your impressions when reading my thesis? Do you believe I missed any important steps or details when conducting my work? Where do you see this work going in the future?

Bonus tip: What if you get asked a question to which you don't know the answer? You can spend weeks preparing to defend your thesis, but you might still be caught off guard when you don't know exactly what's coming. You can be ready for this situation by preparing a general strategy. It's okay to admit that your thesis doesn't offer the answers to everything – your committee won't reasonably expect it to do so. What you can do to sound (and feel!) confident and knowledgeable is to refer to a work of literature you have encountered in your research and draw on that work to give an answer. For example, you could respond, "My thesis doesn't directly address your question, but my study of Dr. Leifsen's work provided some interesting insights on that subject…." By preparing a way to address curveball questions, you can maintain your cool and create the impression that you truly are an expert in your field.

After you're done answering the questions your committee presents to you, they will either approve your thesis or suggest changes you should make to your paper. Regardless of the outcome, your confidence in addressing the questions presented to you will communicate to your thesis committee members that you know your stuff. Preparation can ease a lot of anxiety surrounding this event, so use these possible questions to make sure you can present your thesis feeling relaxed, prepared, and confident.

Header image by Kasto .

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How to Effectively Prepare for Your Thesis Defense

You’ve completed your research study, written your thesis, and think you’re done! If only it were this easy. Before you finish with your thesis, there is one last hurdle to overcome: the thesis defense.

What is a thesis defense?

A thesis defense is an opportunity for you to present your research study before other academic professionals who will evaluate the quality of your academic work. While a thesis defense can sometimes feel like a cross-examination in a court of law, in reality, there is no need to fear your thesis defense as long as you are well-prepared. In this article, we’ll talk about how to prepare for a thesis defense, what to expect at the defense itself, and what comes after your defense. 

Why do I have to defend my thesis?

At your thesis defense, you will discuss everything you’ve learned with a group of interested examiners who are eager to hear your thoughts.

The fundamental purpose of a thesis defense is to prove that you have mastered your subject and can be considered as a knowledgeable expert in your field, thereby allowing you to graduate successfully. For many students, a thesis is one of the first attempts at conducting original research and demonstrating that you are equipped to function as an independent expert in your field. If qualified academic professionals can assess your work, question your methods and results, and confirm that your study is sound and novel, then you meet the requirements.

The exact format and expectations for your thesis defense will differ depending on the region you study in and your institution’s rules for the thesis program. The thesis defense meeting may have just two or three examiners or may have a whole panel of examiners along with an audience. 

If the thought of facing your professors, peers, and parents to present your research study makes you feel dizzy, you aren’t alone . Moreover, a thesis defense is a great opportunity for you to hone your public speaking skills as well as talk about your research study. At your thesis defense, you will discuss everything you’ve learned with a group of interested examiners who are eager to hear your thoughts.

While the format for a thesis defense will vary, as mentioned above, most thesis defenses consist of:

• Presenting your research study (using PowerPoint or other similar tools)
• Answering questions from your thesis committee
• Receiving feedback from your thesis committee

So how can you prepare for it? Let’s talk about some important tips.

Preparing: Before the defense

It is useful to attend multiple defenses and ask others who have gone through the process what it was like.

The best way to prepare for a thesis defense is to attend other defenses at your institution so that you know what to expect. It is useful to attend multiple defenses and ask others who have gone through the process what it was like. Senior students are often happy to provide advice and can give you specific insights about particular examiners as well as details of the administrative process at your institution.

You should also talk to your thesis advisor well in advance of your defense about what to expect. Ask whether you need to shortlist your own committee, how long your presentation should be, and how long the thesis defense will be. The duration of a thesis defense varies by the degree level as well as the institution. On average, expect your defense to be at least an hour long, possibly longer for a Ph.D.

What should my presentation cover and how can I prepare it?

While preparing your presentation, also prepare a list of questions and answers that you think are likely to be asked by your committee.

You will need to prepare a presentation that will cover the details of your research study. It is wise to rehearse this presentation multiple times in advance of your thesis defense so that you will be comfortable when you actually present in front of your audience. While preparing your presentation, also prepare a list of questions and answers that you think are likely to be asked by your committee. If you can, enlist the help of a classmate or friend to be the examiner. They can ask you questions about your research study so you will be able to practice addressing these questions.

One mistake many students make is assuming that all members of their defense committee will thoroughly read their thesis prior to the defense. This is simply not always the case. For this reason, you should make sure your presentation makes sense to someone who has not actually read your thesis. A typical thesis defense presentation gives:

• An introduction to the topic
• Explains how the study is significant in the field
• Covers the main highlights of the methodology and results of the study
• Picks out the main points from the discussion and conclusion

What should I do the day before my defense?

Before your thesis defense, make sure you have backups of everything you need saved in multiple formats and multiple locations.

Before your thesis defense, make sure you have backups of everything you need to be saved in multiple formats and multiple locations. Put your presentation and your thesis on a USB drive, email it to yourself, upload it to the cloud, and print it out. Leave nothing to chance: you want to be absolutely prepared to defend your thesis short of an act of God obliterating the venue. In addition, make sure you prepare hard copies (printouts) of both your thesis and slideshow for the committee members. It need not be professionally bound at this stage, but they will appreciate having reference material on hand.

Finally, there are some practical steps to take in preparation for the thesis defense. Choose your outfit in advance (you should dress professionally) and practice presenting in it. You should also make sure you know the exact location of the thesis defense venue. Scope out the venue before your defense, if possible, so you can imagine yourself there while you rehearse. If you are presenting virtually, test all your equipment in advance and have a backup plan in case your internet goes out or your computer suddenly crashes. Most importantly, make sure that you eat well and get proper rest the night before. Don’t stay up late rehearsing last minute in the hopes of improving your chances of passing your defense. You will do much better if you are well-rested and alert. 

Time to shine: At the defense

Try to stay calm and remember you are not on trial!

What can you expect on the day of the defense?

Typically, you will enter the room, set up, and begin your presentation once the committee indicates that they are ready. As mentioned above, it is always advisable to bring hard copies of both your thesis and slideshow for the committee. That way, they can easily refer to what you are talking about as you present. Make sure you also bring a pencil and notebook with you to take notes, and some water, because you will get thirsty as you talk.

After you are done with the presentation, the committee members will ask questions. Try to stay calm and remember you are not on trial! Your committee generally wants you to succeed, but they also want you to prove that you really know what you’re talking about. Do your best to answer their questions and never be afraid to admit when you don’t know something. It is much better, to be honest than to be caught lying or making something up during your thesis defense.

After the question and answer session, depending on your institution, you may be asked to leave the room while the committee deliberates. You may also be present while they discuss the merits of your defense and make suggestions for how to revise it. Alternatively, they might adjourn to another room if there is a large audience present. After they deliberate, they will usually thank you for your time, and your defense will be over. At some institutions, they will inform you if you passed right away, while at others, you will find out after a few days. 

How does my committee decide if my work is good or not?

In general, you can expect your thesis defense and your thesis as a whole to be evaluated based on the below criteria:

• Whether the thesis meets the departmental requirements
• Whether the research study is logical and clear
• Whether the stated objectives are met in the study
• Use of primary and secondary literature
• Use of relevant and up-to-date sources
• Methodological rigor
• Your ability to critically analyze data, facts, relevant literature, and synthesize information into a coherent narrative
• Writing quality and flow
• The validity of your conclusions based on your data and analysis
• The relevance and importance of your research study in the field
• Your ability to clearly and coherently present what your thesis is about
• Your ability to answer questions about your work accurately and in-depth
• Your ability to acknowledge and consider other theories or perspectives and explain why you dismissed one theory in favor of another

In summary, the examining committee want to know:

• Did you meet the thesis criteria set by your institution?
• Did you perform high-quality research work?
• Do you know what you are talking about?

After the defense: What’s next?

After your thesis is approved, you will need to have it professionally bound and then submit copies to your university.

After your thesis defense, you should definitely celebrate and congratulate yourself for all your hard work! Unfortunately, you aren’t quite done yet. Although the committee may notify you about passing, it is also very likely that you will be asked to make some changes to your thesis before you are finally done. You should work with your advisor to finalize and incorporate any comments you received into your work as quickly as possible.

After your thesis is approved, you will need to have it professionally bound and then submit copies to your university. You will also get the chance to order copies for yourself. This process also differs by institution, so make sure you talk to the administration department to figure out what you need to do and when to complete this process.

All in all, while a thesis defense is a scary and overwhelming event, it is also an incredible achievement. Earning your degree is no small feat, and you should definitely feel proud of yourself once you have done it! Check out our site for more tips on how to write a good thesis, where to find the best thesis editing services , and more about thesis editing and proofreading services .

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To prepare for your thesis defense, make sure that you:

Find out your institutional requirements

Talk to your advisor well in advance about what to expect and prepare

Attend defenses of other students to see what they are like

Prepare your presentation early so you can rehearse it

Rehearse your presentation with a timer

Make a list of questions and answers about your research study

Enlist a friend to be the examiner and ask you questions

Prepare multiple backups of your materials (USB drive, Google Drive/Cloud storage, email, hard copy) 

Have a plan for computer/internet problems if you are presenting virtually

Eat well and get a good night’s rest before the defense

Arrive at the defense venue early enough to test any IT equipment or internet connection

What should I do to prepare for my thesis defense? +

• Find out your institution’s requirements
• Attend other thesis defenses
• Speak to your advisor
• Prepare and practice your presentation
• Enlist a friend or classmate to act as the examiner and ask you questions while you practice

How long is a typical thesis defense? +

Every institution is different, but most thesis defenses are at least an hour long.

What should my thesis presentation actually contain? +

 A typical thesis defense presentation introduces the thesis topic, explains how your study is significant in the field, and covers the main highlights of the methodology and results of the study. It finally picks out the main points from the discussion and conclusion section of your thesis.

What if I fail my thesis defense? +

The odds that you will fail are extremely low! Most advisors and committees do not let a candidate schedule a defense unless they feel the candidate is ready. So, don’t worry about it. However, if you do fail for some reason, your institution will have a process for you to apply to try again.

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"Surface Processes on Airless Planetary Bodies: Quantifying the Effects of Regolith Mixing on the Lunar South Pole and Ejecta Deposition on Ceres"

Dissertation Defense by Pedro Montalvo

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