What should I do if I can t answer a question during my thesis defense

A thesis defense is your chance to demonstrate your in-depth knowledge and expertise in the topic of your research thesis. While you will be able to take charge of the narrative and present your research to those on your thesis committee, the professors will prod you to test how well you know and understand your topic. The questions are mostly open-ended and give you the chance to showcase your knowledge and understanding, as well as any future plans you may have regarding your research topic.

A thesis defense usually lasts between one and two hours, depending on the area of your research. It starts with you giving a presentation of your interest, findings, and conclusions. After you have finished, the committee members will ask you questions based not only on your presentation, but also on your written thesis as they will have read it before your presentation. Lastly, the committee might approve your thesis or suggest changes to your paper.

How to Prepare for Thesis Defense Questions

Preparing thesis defense questions requires you to start well in advance. While the duration of your thesis defense might vary as per your institution's requirements, the major idea is to defend your research. Thus, you should go about preparing for your thesis defense questions by taking the following steps.

Interested in a quick overview of the section below? Check out this infographic:

Re-read your thesis for clarity

Your thesis defense questions will be based on what you have written in your research paper. Hence, it is a good idea to re-read your paper. You should be clear on the concepts and understand your research well. It might have been some time since you would have submitted your paper, so a revision should be the starting point of your preparation.  

Have an answer strategy and structure

Plan a strategy to answer the panel’s questions. Keep your answers direct, but elaborate on the research details wherever necessary. If you do not know the answer to a question, that is alright. The key is to be able to formulate an answer even if you do not possess enough knowledge to answer at that point in time. For instance, if a question is about the content of your research, you can say something like “I am not certain my research touches on the question you are asking, but my research has led me to Dr. X. Based his evidence, I would have to conclude that…” Having a strategy for answering even the most unexpected questions can be a life saver in these situations!

Predict the obvious questions and prepare for them

Most of the thesis defense questions can be easily predicted based on your research. You can prepare a list of possible questions when you are going through your paper. Getting to know the committee can help you in preparing better. Their areas of expertise can help you in determining what they might ask. Once you have a list of questions, you can start brainstorming how you might answer them. 

Prepare your slides in advance

If you require visual aids such as slides, it is a good idea to prepare them beforehand. You can double-check the slides and make sure that your presentation will run smoothly on the day of your thesis defense. Make sure your slides are arranged in the correct order. 

Attend a thesis defense of other candidates if it is an open event

If your institution allows it, you can visit a thesis defense of other candidates. This will give you an excellent idea of what you can expect in your meeting. If it is not possible to attend the event, you can speak to your peers to find out how their meeting went and what questions were asked.

Dress appropriately for your meeting

The thesis defense meeting is a formal event, and hence you should be dressed in formal clothes. While there are no strict dressing rules, you should consider it something equivalent to a job interview. Don’t just wear your T-shirt and appear in front of the committee. Your formal suit is a better option for the occasion.

Practice speaking for your meeting

Take your preparation to the next level by practicing your presentation. This activity will give you the confidence for the actual meeting and presentation. You can request your academic peers to help you out in the practice task. Based on their feedback in the mock session, you can improve for the actual session. Make sure to prepare well for the mock session as if you are preparing for the actual session. You can also practice your speech and body language in the mock session. If you used thesis writing services, these professionals would also be the ideal people to test you in a mock thesis defense – don’t hesitate to reach out to them again!

Sample Thesis Defense Questions and Answers

1.    What is your research study all about?

In your answer, you should summarize your research in a few sentences. The question is simple but requires technical expertise for a better explanation of concepts. For instance, if you completed a thesis in an attempt to explain the constituents of dark matter in the universe and particle accelerators, you could frame your answer like this:

In this research, the different aspects of dark matter and its detection models have been investigated. The cosmic ray positron excess observed by the PAMELA detector has been discussed and explained through the construction of models of decaying dark matter. The cosmic-ray electron and positron spectra were studied assuming a general Dirac structure for the four fermion contact interactions of interest. A supersymmetric leptophilic Higgs model was constructed to explain the possible excess of gamma rays in the galactic center. Finally, by the use of Razor analysis, an improvement on the dark matter collider searches is considered.  

2.    Why did you choose this study?

This question requires you to answer what motivated you to pursue the study in the first place. Your answers could touch on your interests in the area of the study. For example, if you conducted a study called “Media Combat: The Great War and the Transformation of American Culture” then you can shape your answer like this:

The First World War (1914-1918) has always been a topic of fascination for me, and my prime interest lies in exploring the state of society at that time. I wanted to analyze the formation of a nationalized, wartime cultural apparatus during the United States' involvement in the war and how theatre and music transformed the relationship between the government and American citizens. 

3.    Why did you choose this particular title for your research?

The title of your thesis captures the main point of your research, which is why it is so important to use an appropriate title. Your committee will want to know how you came to the final decision of naming your work. For example,

I chose the title “Dark matter in the heavens and at colliders: Models and constraints” for my research thesis because my research attempts to explain the constituency of dark matter as it occurs in the universe. “The heavens” is another word for the universe. Dark matter can also be created in particle accelerators such as the CERN collider. I have attempted to provide an explanation for both of the cases through the use of models, along with describing the constraints which exist in the current times due to certain scientific limitations.

4.    What is the scope of your study?

In your answer, you have to define the boundaries of your project and define exactly what you are studying. There can be several elements involved but you have to define the parameters that you have chosen to study. For example,

My study is on the efficacy of equity stocks in the US market. For my study, I have chosen 50 companies listed on the NASDAQ. You can review the names of these companies on page 5 of my thesis.

5.    What phenomenon were you trying to understand with this research?

Describe the focus concept of your thesis in the answer. For example,

In our study “Motivation to volunteer”, we were looking to study the Theory of Planned Behavior by analyzing the behavioral and normative beliefs that influence attitudes and subjective norms.

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6.    Who will be most interested in your research?

You can talk about who may be affected by your research and the parties who can potentially benefit from the research. Take a look at this example:

My sociology thesis on “Impact of social media on youngsters” can be of interest to sociology academics, social media companies, education experts, and parents of youngsters in general.

7.    Did your research questions evolve during the process? If so, how?

Often, qualitative research questions change over time with respect to the responses that you might get from your focus group. Or you might just change your question as you do lab research or general text research. You can describe the change to the evaluating committee. For example,

We started our study to understand the impact of the new public policy change on recycling of vinyl waste through installation of garbage bins specifically for vinyl products. However, after interviewing some of the respondents in the target community, we found that the rule is actually irrelevant to their behavior and thoughts because the percentage of vinyl waste in that specific locality was very low and it didn’t need the installation of dedicated bins for the purpose. Going by their frustrations with the current economic insecurity, our study evolved into the impact of costs incurred by public policy changes.          

8.    What gaps did you intend to bridge with your research?

Your research thesis must eliminate the present gaps in the concepts related to your subject topic.

The relationship between hard water and its effect on the size of the kidney stone is not clear yet, so we analyzed the mineral composition of hard water to determine its impact on the size of the kidney stone.

9.    Why is your research significant?

The answer to this research question should outline the impact of your research on your field of study. You may talk about the new insights contributed by your research and its impact on society.

Through my study on “The effect of chamomile in reducing stress and promoting better sleep,” patients with insomnia and anxiety will be able to find alternative treatments without the use of medicinal drugs. The medical abilities of chamomile will promote the usage of ingredients in nature and will encourage the community to plant more herbs and trees.

10. What did you find in your research?

You may describe your research in a few sentences in this answer. For instance,

In our study on “Impact of artificial fluoride in water on the human body,” we found that excessive exposure to high quantities of Fluoride can result in tooth discoloration and bone issues in humans since it has neurotoxic qualities. 

11. What research findings surprised you?

When you conduct research, you come across findings that you were not expecting earlier. If you had such an experience, you might describe the same to the evaluation committee when you answer this question. For example,

I was expecting that business promotion through social media would not be a good idea for rural enterprises in developing countries in my comparative analysis of the usage of traditional and contemporary marketing methods. But I was surprised to learn that 68% of rural textile businesses in Nigeria promote their products on Instagram.

12. What is the validity of your findings?

You have to talk about the conditions in which your research findings would be valid.

In my research, I have considered test anxiety to be involving both nervous system activation and negative thoughts. Thus, my measure of test anxiety has included the elements of both nervous feelings and negative thoughts, the conditions in which my findings are valid.

13. Why did you choose this research methodology?

For example,

For studying the differential protein expression, its localization, and distribution at different levels, we used the method of immunostaining in our research.

14. What sources did you use for data collection?

You would have used several sources to search for data for your topic. You may elaborate on those sources. You might have referred to databases, content on the web, or even conducted primary research by interviewing prospects. Thus, you can talk about these sources. Refer to the following answer:

To understand the impact of the current tax regime on skilled workers, we interviewed 150 subjects in 5 months. Additionally, we referred to databases and scholarly works available by authors who had previously conducted such studies for previous tax laws and rates. 

15. How can your research be put into practice?

This question talks about the practical implications of your research. You should talk about how your research is beneficial for society and how it can help in eliminating current issues.

In our research titled “Effectiveness of Meditation on Reducing the Anxiety Levels of College Students in the US,” we discovered that students who practiced meditation at least thrice a week were two times more likely to score better in their exams, owing to the positive impact of meditation. So, this research finding can help in the reduction of mental health issues among students. A suitable course of action would be to hold meditating sessions a couple of times a week. 

16. How will your findings contribute to the related area of knowledge?

For example,

Our study on medicinal analysis of herbs conveys information about various medicinal benefits of chamomile in treating depression and contributes to the area of medicinal botany.

17. Did you experience any limitations in your research?

For example,

Our research on “Impact of smoking on β-cell function and risk for type 2 diabetes in US citizens” finds that smoking increases the risk of diabetes among smokers. However, smokers might be affected by some genetic conditions which can protect them from diabetes. 

18. What sampling techniques did you use?

When conducting research, it is practically not possible to study the entire number of elements. So, you would be using a method to select a sample population.

In our study “Impact of consumption of soda on the health of teenagers in Corpus Christi”, we used area sampling to divide the city into several areas and then selected some clusters for our sample group.

19. What are the dependent and independent variables in your research?

In research, several variable factors impact your study. You can describe these variables. Independent variables have values which are not affected by other variables in your study. On the other hand, the dependent variables have values that change with changes in the independent variable. For example,

In our study on “Impact of online tutoring on test scores”, the independent variable is the nature of the classes i.e., online and the participants' test score is the dependent variable.

20. What areas do you suggest for further research?

As a researcher, you should be able to describe what further areas are open for research with the addition of your research to the field. This can act as a starting point for future researchers. For example,

In my research on “Effectiveness of Acetaminophen in treating sports induced injuries”, I discovered that administering Acetaminophen is not very effective for treating joint pains such as the knee. This further suggests measures for the regulation of Acetaminophen in the production of painkillers for body pain and the search for alternative compounds.

Practice Questions

After taking a look at the sample answers, now try answering these questions by yourself:

FAQs

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