The most common questions during the defense of a diploma thesis

Questions about the choice of topic and the purpose of the work

Prepare an answer why the topic is important, what problem it solves and what was the main goal. Avoid generalities such as "the topic interested me"; indicate a specific scientific or practical context.

The committee may ask how the scope has changed during the work. Explain decisions and show that narrowing the topic served the feasibility and quality of the analysis.

Questions about method and material

You need to be able to justify the choice of a survey, interview, document analysis or other method. Prepare basic information about the sample, tool, test procedure and method of analysis.

Asking about another possible method does not mean that the chosen one was wrong. Compare the solutions and indicate what additional data could be obtained in a subsequent study.

Questions about results, conclusions and limitations

Select the three results that best answer your main question. Describe each with a simple diagram: what was found, on what data and why it is important.

Prepare one or two limitations and how they affect the interpretation. Awareness of limitations proves methodological maturity, not weakness of the work.

How to practice answers before defense?

Record your answers on your phone and see if they stay within one or two minutes. Remove long introductions, definitions unrelated to the question, and repetitions.

Ask the other person to ask the questions in a different order. If you need an individual set of questions or to organize your presentation, you can upload your work to our website before the defense.

Build a question map from your own thesis

The most useful set of questions comes from decisions visible in your document. Review the title, aim, methodology, tables and conclusion, noting a possible 'why?' for each element. Why was this group chosen? Why was this definition used? Why was that period excluded? Then prepare a short answer based on the actual material. Do not retrospectively add reasons that cannot be defended in light of the thesis. If a decision resulted from limited data access, explain this and identify its consequence. Separately collect the subject-area questions required by your university. Check their scope in current faculty materials. An online list of common questions can help you practise speaking, but cannot replace knowledge of your own text and the examination rules for your particular degree programme.

Answer from the main point to the justification

Start with a direct answer, then give the justification and an example from your thesis. In a teaching example, you can begin answering 'Why did you choose an interview?' by stating that the aim was to understand how participants interpreted their experience. Then show the connection to the research question and explain the limitations of this decision. Do not begin with a long history of every method you learned during your studies. If the committee needs more detail, it can ask. Practise two versions of the answer: a brief one and one expanded with details. This helps you adapt the length to the situation without memorising a speech. After each attempt, check whether you addressed the question asked. A fluent answer on a neighbouring topic may sound good while still failing to explain the decision in question.

Prepare for questions about numbers and charts

Choose the key tables and charts and check whether you can explain every category, unit and percentage base shown. In a teaching example, 60% of responses does not necessarily mean 60% of everyone invited. The committee may ask which group the result concerns. For comparative tables, prepare information about group sizes and missing data. You need not remember every value, but should understand how the main results were calculated and know where to find them in the thesis. If you used a statistical test, practise explaining its purpose within the scope of your study. Avoid claims about causes if the analysis shows only co-occurrence. For qualitative findings, show how the categories emerge from the material and prepare an example illustrating the interpretation without revealing unnecessary participant data.

Turn a critical comment into a discussion of scope

A question about a weakness in your thesis does not require defending every sentence at all costs. First establish whether it concerns an error, a limitation or a possible direction for development. If a real error has been identified, do not try to conceal it. Explain which part it affects and how it should be corrected. If it concerns a project limitation, refer to the aim's scope and the available material. In a teaching example, lacking a representative sample limits generalisation but need not invalidate an account of the study group's experiences. A well-prepared answer distinguishes these levels. You can also identify additional data needed for a broader conclusion. However, do not use a future study to evade a question about the current result. First respond to the comment on the submitted thesis, then propose an extension.

Rehearse the defence with follow-up questions

Ask another person to pose one follow-up question after every answer. It might request an example, clarification of a concept or an alternative. This lets you practise a conversation instead of reproducing the slide sequence. Record the rehearsal and assess the content first: whether the answer is clear, contains unsupported generalisations and uses terminology consistently with the thesis. Also check your pace and moments when excessive detail obscures the main point. Prepare a short revision card with the aim, method, main results and limitations. Treat it as a preparation tool, since permission to use notes during the examination depends on university rules. Base your final revision on difficulties revealed during rehearsal instead of rereading the entire document without a specific task.

Summary

What counts in defense is understanding your own work, not a perfectly memorized formula. Prepare a map of the most important decisions, practice your answers within one or two minutes, and learn to respond calmly to additional questions. If you can explain the purpose, method, result, and limitation, you have a solid basis for an interview with the committee.