Dissertation Defence
Viva Voce
PhD Kenya
Masters Kenya
Thesis Defence Preparation
Postgraduate Research
23 Dissertation Defence Questions (Viva Voce) Every Masters & PhD Student in Kenya Must Prepare For
Tobit Research Consulting | Dissertation Defence Preparation Series | Reading time: ~15 minutes
What you’ll learn: The 23 most common dissertation defence (viva voce) questions examiners ask at Kenyan universities — with expert guidance on why examiners ask each question and exactly how to answer it. Plus a preparation checklist, tips for the day, and a note on how Tobit Research Consulting can support you.
You have spent months — sometimes years — working on your dissertation or thesis. You have survived the sleepless nights, the data collection challenges, the supervision meetings, and the countless revisions. And now, standing between you and your degree is one final hurdle: the dissertation defence examination.
If your university or supervisor has used the term “viva voce” — do not be alarmed. A viva voce is your dissertation defence. The two terms refer to exactly the same examination. “Viva voce” is the formal Latin name (meaning living voice) used in academic circles, while “dissertation defence” or “oral defence” is the everyday term most Kenyan students are familiar with. Whether your institution calls it a viva, a viva voce, an oral defence, or a thesis defence — the format, the purpose, and the questions are essentially the same.
At Tobit Research Consulting, we have supported over 5,000 Masters and PhD students from universities across Kenya through their research journeys. In this guide, we break down the 23 most common dissertation defence questions, explain why examiners ask them, and give you a framework for answering each one with confidence.
1. What Is a Dissertation Defence — and What Is a Viva Voce?
Before diving into the questions, it is worth settling this terminology confusion once and for all — because it genuinely trips up many Kenyan postgraduate students.
A dissertation defence and a viva voce are the same examination. Your university may use either term — or both — depending on its academic tradition and the background of your supervisors and examiners.
| Term used |
What it means |
Where you’ll hear it |
| Dissertation defence |
Oral examination of your research |
Most Kenyan universities |
| Thesis defence |
Same — used especially at PhD level |
UoN, KU, Strathmore, USIU |
| Viva voce |
Formal Latin term meaning “living voice” |
Supervisors, examiners, formal documents |
| Oral defence |
Another common name for the same examination |
Across African universities |
In all cases, the examination works the same way: you sit before a panel of academic examiners, present your completed research, and answer their questions in person. The examination typically lasts between one and three hours. Examiners probe your work from every angle — your rationale, methodology, findings, limitations, and contribution to knowledge — to verify that the work is genuinely yours and that you understand it deeply enough to defend every decision you made.
Good news: Most dissertation defence questions fall into predictable categories. If you prepare systematically using this guide, you can walk into that room ready for almost anything your panel throws at you.
2. The 23 Dissertation Defence Questions — With Expert Guidance
For each question below, we explain why examiners ask it and give you a clear framework for how to answer. Read these carefully — understanding examiner intent is the most powerful preparation tool available.
Questions 1–5: Your Study, Motivation & Research Questions
Question 1
In a few sentences, explain to us what your study is all about.
Why examiners ask this: This is your “elevator pitch” moment. Examiners want to see whether you can distil your entire research into a clear, concise summary — a skill that signals genuine mastery of your own work.
How to answer: Prepare a 3–5 sentence summary covering: (1) the problem you studied, (2) how you studied it, (3) what you found, and (4) why it matters. Avoid jargon. A useful framework: “This study examined [topic] in the context of [setting]. The problem was that [gap]. I used [methodology] to investigate [research questions]. The key finding was that [main result], which has implications for [theory/practice/policy].”
Question 2
Why and what motivated you to conduct this study?
Why examiners ask this: They want to understand the origin of your research and assess whether there is genuine intellectual or practical motivation — not just a topic assigned to you.
How to answer: Be honest and specific. Connect a personal or professional motivation to a scholarly rationale. Prepare both: the personal story makes you memorable; the academic justification shows rigour. If a gap in the literature, a policy challenge, or a professional observation motivated you — say so precisely.
Question 3
What are your Research Questions/Objectives, and why so?
Why examiners ask this: This tests whether your research questions were carefully formulated or thrown together. Examiners want to see clear alignment between your problem statement, objectives, and the rest of your study.
How to answer: State your research questions or objectives precisely, then explain the reasoning behind each one — how they logically arise from the problem statement, how they relate to each other, and how together they address the identified research gap. Do not simply recite them from memory; demonstrate that you understand why each was necessary.
Question 4
How will this study contribute to the current body of knowledge?
Why examiners ask this: This is the contribution question — the heart of any postgraduate research. Examiners need to know that your work advances knowledge, not merely summarises what others have said.
How to answer: Be specific. Identify the theoretical gap your study fills, the empirical context it addresses (e.g., a Kenyan setting not previously studied), or the methodological innovation you introduced. Distinguish between primary contributions (new knowledge) and secondary contributions (confirming or extending existing knowledge). Example: “This study is among the first to examine [X] in the Kenyan SME context, extending [Theory Y] by demonstrating that [finding Z].”
Question 5
Is there a theoretical limitation that you are addressing? Why so?
Why examiners ask this: They want to know whether you engaged critically with existing theory rather than applying it uncritically. This is a higher-order question that separates strong candidates from average ones.
How to answer: Identify a specific limitation or gap in the theoretical framework underpinning your study — for example, that an existing theory was developed in a different context, fails to account for certain variables, or has been challenged by recent empirical evidence. Then explain how your study begins to address that limitation.
Questions 6–9: Significance, Gaps & Literature Review
Question 6
Kindly elaborate on the significance of conducting this study.
Why examiners ask this: Significance is different from contribution. Contribution is what you add to knowledge; significance is why it matters — to theory, to practice, to policy, and to society.
How to answer: Discuss significance at three levels: Theoretical — how does it advance academic understanding? Practical — how can practitioners, managers, or policymakers use your findings? Social/policy — what are the broader societal implications? The strongest answers address all three levels with specificity.
Question 7
Apart from the body of knowledge, did you bridge any important gaps?
Why examiners ask this: This goes beyond theoretical contribution to ask about contextual, empirical, or methodological gaps you addressed — gaps beyond the academic literature itself.
How to answer: Think broadly. Did you study a population not previously studied? Did you combine variables not previously examined together? Did you apply a methodology not previously used for this problem? Did you collect primary data where only secondary data existed? Each of these is a legitimate gap-bridging contribution worth articulating clearly.
Question 8
Are you certain you have conducted a sufficient Literature Review?
Why examiners ask this: This is a challenge question designed to test your confidence and awareness of the scope of existing scholarship. Some candidates have notable gaps — this question exposes that.
How to answer: Do not simply say “yes.” Demonstrate why your review was sufficient by describing your search strategy: databases searched (Google Scholar, JSTOR, Scopus, EBSCO), search terms used, date range covered, and inclusion/exclusion criteria applied. Acknowledge any access limitations honestly while arguing that your review covered the core and most current scholarship in the field.
Question 9
What technical limitations did you encounter?
Why examiners ask this: No study is perfect. Examiners want to see that you are aware of your study’s limitations and can discuss them honestly and intelligently — not hide from them.
How to answer: Identify specific limitations — not vague generalities like “time and resources.” Common examples include: sample size constraints, instrument reliability issues, response bias in surveys, inability to establish causality with cross-sectional data, or data access restrictions. For each limitation, explain how you mitigated it or why it does not fundamentally undermine your findings.
Questions 10–14: Findings, Methods & Data Reliability
Question 10
What are your findings?
Why examiners ask this: They want to confirm you understand your own results — not just what the statistics say, but what they mean.
How to answer: Summarise your key findings clearly and in plain language. For each major finding, connect it back to a research question or objective, then interpret it — what does this finding tell us about the phenomenon you studied? Avoid simply reading out tables of numbers. Prepare a one-paragraph summary per research objective and practise saying it aloud until it flows naturally.
Question 11
What methods did you apply to achieve these findings?
Why examiners ask this: Methodology is one of the most heavily scrutinised areas of any dissertation. Examiners want to know that your methods were appropriate, rigorous, and properly applied.
How to answer: Describe your research design (e.g., descriptive, correlational, experimental), your approach (quantitative, qualitative, mixed methods), your data collection instrument, your sampling technique and sample size, and your analysis method. Be ready to justify each choice — see Question 13.
Question 12
How would your findings contribute back to the present theories?
Why examiners ask this: Theory and empirical findings exist in dialogue. Examiners want to see that you understand how your data speaks to theoretical frameworks — whether confirming, extending, challenging, or refining them.
How to answer: Return to the theoretical framework anchoring your study. Does your empirical evidence support it in the Kenyan/African context? Does it suggest modifications? Does it challenge assumptions previously taken for granted? The strongest answers show that your findings add nuance or open new theoretical questions — not just confirm what was already known.
Question 13
Why did you choose this particular method?
Why examiners ask this: This is a fundamental justification question. You must be able to defend every methodological decision you made.
How to answer: The key word is justification — not just description. Explain why your chosen design was the most appropriate given your research questions, your epistemological position, and practical constraints. Compare it to alternatives you considered and ruled out. Example: “A qualitative approach was more appropriate than a quantitative one because the research question sought to understand the lived experiences of participants, which requires depth rather than breadth.”
Question 14
Were the source data reliable? How did you test the reliability?
Why examiners ask this: Data quality is fundamental. Examiners want to know that your findings are based on trustworthy data and that you took verifiable steps to confirm this.
How to answer: For quantitative studies, discuss reliability testing — typically Cronbach’s Alpha for internal consistency (acceptable threshold: α ≥ 0.7), test-retest reliability, or inter-rater reliability. For qualitative studies, discuss trustworthiness criteria: credibility (member checking, prolonged engagement), transferability, dependability, and confirmability. For secondary data, explain how you verified the source and quality.
Questions 15–19: Recommendations, Future Research & Reflection
Question 15
Based on the resulting outcome, what are your recommendations?
Why examiners ask this: Research must ultimately be actionable. Examiners want to see that your recommendations are logically derived from your specific findings — not generic advice that could apply to any study.
How to answer: Structure your recommendations clearly into: (1) Recommendations for practitioners/managers/policymakers — specific, actionable steps; and (2) Recommendations for future researchers — what questions remain, what methodologies should be tried, what populations should be studied. Avoid vague statements like “more research is needed.” Be precise about what research, why, and how it should be conducted.
Question 16
You are an expert in this area — so where is the future of this study heading?
Why examiners ask this: By the time you defend, you should be the most knowledgeable person in the room about your specific topic. This question tests that expertise and your ability to think beyond your own study.
How to answer: Discuss emerging trends, unanswered questions, and methodological frontiers in your field. What debates are ongoing? What new data sources or technologies are opening research possibilities? This is your opportunity to demonstrate genuine scholarly engagement that extends beyond your own dissertation.
Question 17
How can I adopt your study into practical application/implementation?
Why examiners ask this: This tests the practical relevance of your research — particularly important for professional doctorates or applied research degrees.
How to answer: Be concrete. Describe specific steps a practitioner, organisation, or policymaker would take to apply your findings. If your study found that a particular variable significantly predicts an outcome, explain what organisations should do with that information in terms of policies, training programmes, frameworks, or operational changes.
Question 18
Let’s assume I am from industry — how would you describe your study to me?
Why examiners ask this: This is a communication and translation test. Can you make your academic research accessible and relevant to a non-academic audience?
How to answer: Drop the academic jargon entirely. Speak in business language. Focus on the problem you solved, the evidence you gathered, and the practical takeaways. Think of it as your “boardroom pitch” — clear, relevant, and results-focused. Example: “We noticed that many Kenyan SMEs were struggling with [problem]. Our research found that [key insight]. Based on this, businesses can [specific action] to improve [outcome].”
Question 19
If given an opportunity, would you change anything in your study?
Why examiners ask this: This is a reflective question designed to test your intellectual honesty and your ability to critically evaluate your own work. There is no perfect study — examiners know this. What they want to see is that you know it too.
How to answer: Identify one or two genuine improvements you would make — a larger or more representative sample, a longitudinal rather than cross-sectional design, additional variables, a mixed-methods approach, or different data collection tools. Frame these as lessons that inform your future research agenda, not as admissions of failure.
Questions 20–23: Instruments, Variables, Plans & Scope
Question 20
What were the measuring apparatus/instruments/tools of your study?
Why examiners ask this: They want detailed knowledge of your data collection instruments and analytical tools — not just their names, but how and why they were used.
How to answer: Describe your instruments in detail: questionnaires (how many items, what scale, pilot tested?), interview guides (structured, semi-structured, or unstructured?), observation protocols, or secondary data sources. For analysis, name the software (SPSS, STATA, EVIEWS, NVivo, R) and the specific analytical techniques applied (e.g., regression analysis, thematic analysis, content analysis, ANOVA). Be ready to explain why each tool was appropriate for your data.
Question 21
How did you decide on your solutions/research variables?
Why examiners ask this: Variable selection must be theoretically and empirically justified — not arbitrary. Examiners want to see that your variables emerged from the literature and theoretical framework, not personal preference.
How to answer: Trace the intellectual origin of your variables. Show they are grounded in established theory and supported by empirical precedent (used in similar studies by named authors). Explain how operationalisation decisions were made — how abstract constructs were translated into measurable indicators.
Question 22
After completion, what is your plan for your research project?
Why examiners ask this: This tests your forward-thinking orientation as a researcher and signals whether you see this study as a one-off exercise or the beginning of a broader scholarly agenda.
How to answer: Discuss concrete plans: journal publication (name specific target journals), conference presentation, policy brief development, or practical application in your professional context. For PhD candidates, discuss how this study positions your future research programme. Naming specific peer-reviewed journals you intend to target is a powerful signal of academic seriousness.
Question 23
Based on your overall research, what is the actual scope of your study?
Why examiners ask this: Scope delimitation is a critical research skill. Examiners want to see that you know exactly what your study covers — and equally importantly, what it does not cover — and that both were deliberate decisions.
How to answer: Define your scope across multiple dimensions: geographical (which region or country?), population (which group was studied?), temporal (what time period?), and thematic (which variables and phenomena were included?). Be clear about what was deliberately excluded and why. Exclusions made for methodological or practical reasons are perfectly acceptable — the key is that they were intentional, not accidental.
3. General Tips for Dissertation Defence Success
Beyond preparing your answers, the following habits will significantly improve your performance on the day of your examination.
- Know your thesis inside out. Read it cover to cover at least once a week in the month before your defence. Pay special attention to your methodology chapter and your discussion of findings — these are the most heavily examined sections.
- Practise out loud. Thinking through answers in your head is not enough. The viva voce is a verbal performance. Practise speaking your answers aloud, ideally with a colleague, supervisor, or research consultant who can give you honest feedback.
- Prepare a one-page summary sheet. Create a single reference sheet covering your research questions, theoretical framework, key methodology decisions, main findings, and contributions. Review it daily in the week before your defence.
- Anticipate follow-up questions. For every answer you prepare, think of the most likely follow-up and prepare for that too. Examiners regularly probe deeper after your initial response — this is where unprepared candidates stumble.
- Bring a tabbed, printed copy of your dissertation. Mark key pages — research questions, methodology choices, findings tables — with sticky tabs so you can navigate quickly when asked to refer to specific sections.
- It is acceptable to say “I don’t know.” If asked something you genuinely cannot answer, say so honestly and explain how you would go about finding the answer. This demonstrates intellectual integrity, which examiners value highly.
- Be confident, not arrogant. You know your research better than anyone in that room. Trust your preparation. But remain open to feedback — the viva is partly a scholarly dialogue, not purely an interrogation.
Remember: Outright failure in a dissertation defence is rare. The most common outcome for underprepared candidates is being asked to make minor or major corrections and resubmit. Systematic preparation using this guide makes even that outcome unlikely.
4. How Tobit Research Consulting Can Help You Prepare
Preparing for a dissertation defence is both an intellectual exercise and a performance — and like any performance, it benefits enormously from expert coaching and structured preparation before the day arrives.
Expert Dissertation & Viva Voce Support — Nairobi, Kenya
At Tobit Research Consulting, we offer dedicated dissertation defence preparation and full research support services, including:
- Mock viva voce sessions — simulating the real examination environment
- Dissertation and thesis review — identifying weak areas examiners are likely to probe
- Chapter-by-chapter methodology coaching — so you can defend every decision
- Research writing and editing support — Chapters 1 through 5
- Data analysis using SPSS, STATA, EVIEWS, and NVivo
- Research proposal development (Chapters 1, 2, 3)
- AI content removal and paraphrasing for Turnitin compliance
- Article publication, conference paper, and concept paper support
We have guided over 5,000 postgraduate students from leading Kenyan universities to successfully complete their degrees.
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This guide is part of Tobit Research Consulting’s Dissertation Defence Preparation Series. All question frameworks are based on common examination patterns observed across Kenyan and international postgraduate programmes. Individual university requirements may vary — always consult your supervisor for institution-specific guidance.
