What the viva really involves

A viva voce is an oral examination, usually attended by an internal examiner, an external examiner and sometimes a chair. It typically lasts between one and two hours, though it can run longer. Despite the formality of the occasion, the viva is best understood as a discussion between colleagues who have read your work closely and want to talk about it.

The examiners are not there to trip you up. They are checking three things: that the work is genuinely yours, that you understand it deeply, and that you can defend the decisions you made. They also want to see whether you can place your findings in a wider scholarly conversation. Remember that on your specific topic, you are the expert in the room. Nobody knows your dataset, your interviews or your archive better than you do.

Re-read your dissertation with an examiner's eye

By the time you submit, you may not have read your thesis as a whole for months. Read it once straight through, as a reader rather than a writer, and note where the argument dips or a term shifts meaning.

Then work through it chapter by chapter and build a one-page summary covering your research question, why it matters, your methodology, your key findings, your contribution and your limitations. Keep it to a single sheet you can glance at before you go in.

• Check every figure, percentage and quotation — examiners often ask you to explain a number on a specific page.
• Flag every methodological choice: sample size, case selection, coding framework, statistical test, theoretical lens.
• Revisit your reference list and make sure you could say something sensible about the two or three authors most central to your argument.
• Identify the weakest part of your thesis yourself. Naming it first is far better than being cornered by it.

Anticipate the questions you are likely to face

Most vivas follow a recognisable pattern: an opening invitation to summarise, a deep dive into methods, a discussion of findings, then broader questions about contribution and future work. Prepare brief bullet-point answers rather than a script — reading a rehearsed answer aloud sounds stilted.

• In one or two sentences, what is your thesis?
• Why did you choose this question, and why does it matter now?
• Why this methodology rather than an alternative?
• How did you select your participants, cases or sources, and what are the implications of that choice?
• Which finding surprised you most, and why?
• How do you know what you claim to know? What is the evidence?
• What is the most significant limitation of your study?
• How does your work contribute to the field, and to whom is it useful?
• If you started again, what would you do differently?

The two questions that catch people out most often are "so what?" and "how do you know?" Have a crisp answer to both ready.

Practise explaining your work out loud

Silent revision does not build fluency; speaking does. Start with a three-minute summary of your whole thesis, delivered aloud, then squeeze it into one minute. This forces you to identify what genuinely matters.

Arrange a mock viva with your supervisor if you can, and also with a peer from a different discipline. If a non-specialist can follow your explanation of your methods, you are explaining well. Record yourself and listen back for pace, filler words and moments where you drift into jargon.

Practise the difficult responses too:

• Pausing before you answer, rather than filling the silence immediately.
• Asking for clarification if a question is ambiguous — this is perfectly normal.
• Reasoning aloud when you are unsure, then saying how you would go about finding the answer.
• Accepting a fair criticism calmly, and explaining what you would change.

Acknowledging a genuine limitation shows scholarly maturity. Defending the indefensible does not.

Preparing practically for the day

Confirm the format, the location and who will be present. Take a clean, tabbed copy of your dissertation with sticky notes marking key pages: your methods section, your results tables, your most important quotations. Bring a notebook and pen so you can jot down questions and structure your thoughts.

On the day itself, eat properly, dress comfortably and arrive early. In the room, listen to the whole question before you begin answering, and take a moment to think. Silence is not failure; it is a sign that you are considering the point seriously. If you spot an error in your work, say so plainly and explain what the correct version should be.

Keeping the viva in perspective

Outcomes range from a pass with no corrections to minor or major corrections, and occasionally a recommendation to resubmit. In the overwhelming majority of cases, candidates emerge with their thesis intact and a clear list of improvements. The examiners' comments are not a verdict on you as a person; they are a route to a stronger piece of research.

Nerves are expected and examiners are used to them. Confidence in a viva does not come from being fearless — it comes from having read your own work carefully, thought through the hard questions and said your answers aloud several times before anyone else heard them. You have already done the difficult part. The viva is your opportunity to talk about it.