How to prepare for the PhD Viva
by Dr Anthony D. Cliffe
The Viva, the word that is never far away from a PhD students mind. The mythical almost legendary word that looms over everything that you do. When you start the PhD, it seems a long and distant prospect and as you progress, the Viva looms ever larger like a storm cloud bubbling up on a clear summers day. The Viva is the final battle all PhD students know they must face but never want to. The Viva is the most important battle a PhD student will face as if all the other constant battles weren’t enough already! A hill to either die or survive on, the outcome of you becoming a Dr relies on your ability to survive a two to three hour (on average) defence of your thesis with at least two experts.
Many people outside of academia are simply unaware of what a PhD is or even the amount of work, sacrifice and challenges that come with it. Simply too many to list in this blog that’s for sure! However, many people are aware that by the end of your PhD, you will produce a thesis of substantial word count, for example, including references and appendices my thesis came to 212,000 words! If I had to include all my rewrites and deleted and changed words over the course of the PhD, I’d be looking at having written over 300,000! Yet, people don’t understand outside of academia that writing of the thesis is less than half of the PhD, the rest comes down to the Viva. The word that sends a chill up any PhD student (sorry fellow PhD students for the trigger!).
The term ‘Viva’ is actually short for ‘Viva Voce’ which is Latin for absolute hell. I joke. It actually translates to “by live voice”. In layman’s terms, you’ve walked written the walk, now you need to talk the talk. Every country is slightly different, but in the UK at least, it’s an oral exam, a defence of your thesis between usually an external and an internal examiner behind closed doors. They will have read your completed written thesis multiple times and now you sit in a room where they’ll ask you many questions about it for which you have to justify every decision and action made in the time you’ve been on the PhD. As a general rule of thumb, the examiners are looking for three things (1.) Is it your own work and have you written it (2.) Do you understand what you’ve written and what your results are saying and (3.) Does what you’ve done actually contribute new and original knowledge to the scholarly community.
So, how do you prepare for this showdown to get your PhD? Below I’ll outline how I tackled my Viva preparations and if the Viva is on the horizon for you, I hope it may give you some ideas about how to get yourself in the best shape possible for it.
Read, re-read and when you think you’ve read enough, read one more time
By now you’re probably downright sick of your own writing and if you’ve been editing, you’re perhaps resenting your own work with having read it so many times. However, it is vital that you go back and re-read, multiple times from cover to cover. There where three critical aspects that I took to my viva prep re-reads. Firstly, I read a chapter or two chapters a day, making no notes, just reading, remembering and understanding my work. It may seem obvious, but some of your writing is over two years old and with so much going on and so much different sections that you’ve written its good to refresh your brain. After reading it thoroughly, I then went back through and re-read it under a critical eye. I looked for any formatting, spelling or grammatical errors. If you’ve rushed to get your thesis in you’ll probably find a lot of them but even me, someone who spent three solid months of editing and checking my work prior to submission I still annoyingly found 13 errors including an utterly wrong graph!
I hear that many people don’t want to re-read their work for fear of finding exactly that, a mistake. It happens and the examiners will know it happens too. You’re writing in excess of 100,000 words there is bound to be mistakes. Of course, in your edits its best to catch as many as you can but even if you’re diligent you’ll still miss one or two. Chasing the perfect error free thesis is chasing a pot of gold at the end of a rainbow, a nice idea but ultimately, a futile one. If you submit a thesis that is strung with spelling and format errors because it’s been rushed or you failed to re-read it before submitting it doesn’t mean the Viva will go badly, but it will cast some doubt in the examiner’s minds I’m sure. You’re giving them more ammunition if you’ve failed to check your work. Use software, colleagues, supervisors and friends and family to check before you submit! If, however, you still find mistakes, relax! Make a note of them (I highlighted mine) so that if the examiners point them out, you can be ahead of the curve as you’ve identified it (my examiners didn’t even point out the mistake in the graph which I was stressing about so much, so don’t worry!). Also, it’s super rare that the outcome of the Viva is no changes, you’re most likely at a very minimum getting minor corrections so don’t stress, you can correct those errors in the post-viva corrections phase!
Highlights and sticky notes
After reading my thesis multiple times, I went back through again and brought out my trusted highlighters and post-it notes. I used different colours to represent various aspects of the PhD. Green, for example, was a simple identifier for me of where each chapter began, thus in the Viva when referring to individual chapters if needed, I could just flip to it straight away. Orange I used as fundamentals, i.e. research aims, questions and critical results where purple I used as potential sections of note be that an important paper or parts I feel they may well grill me more on or want to know more about. Find whatever works for you, you don’t want to over complicate it and highlight absolutely everything in your thesis, it’s best practice to only refer to the thesis in the Viva if absolutely essential. So highlight what you feel are the key things and use a system that you know.

My thesis and appendices with my post-it notes
Prepare Questions and Summary
While making your post-it note decorations on your thesis, I opened up two word documents. The first one I used to summarise each of the key points of that page. For example, when summarising your methodology outlining the key papers and 3 principal pros and cons of the method chosen. This helps in your re-read to focus your brain, and the day before the Viva I found it really helpful to just focus on those summary notes because that gave me the key points I needed to focus on without getting too lost in all the details.

Example of my summary pages
As I went through, I also came up with questions that they could potentially ask me about those sections and I wrote them down. I also utilised some fantastic sets of questions out there online about viva preparations. The most effective way of preparing for the Viva was actually to be asked the questions so that I could answer them verbally. It’s all well and good preparing your answers in word, but it’s far better to practice verbalising them. My friend Rosie skyped me a set of questions from her Viva cards, I made a note of that question and then answered it. It’s seriously great practice! For example, she asked me what the theoretical implications of my study where and I gave a very long winded and pretty terrible answer. We discussed together how I should tackle that and be more focused and low and behold a similar question came up in my Viva, and I was able to nail it because I had been prepared. So get a friend, a supervisor or even your family to throw as many questions your way as possible. Below is the 19 random questions Rosie used from her cards to help me prepare. After answering all 19 that came to just under an hour of talking, so you can see how quickly a viva can go, especially as these are generic. Sadly, you can never truly prepare for the very specific and in-depth questions the examiners may have!
- Why did you narrow your focus of enquiry to this?
- How did research questions emerge?
- Which previous studies influenced your work?
- Who or what was most influential?
- What is the area in which you wish to be examined?
- How did you choose your methodology and were there any constraints?
- Limitations of your method and study?
- Did you encounter any problems?
- Talk us through how you analysed the data?
- What steps did you take to mitigate errors and bias the data in your qualitative methods?
- Do you believe your methods entomologically aligns?
- If you could start again, what would you do differently?
- How did your thinking develop as you went through your research process?
- How do your findings challenge the established literature in this field?
- How long do you expect your work to remain current?
- Where did you go wrong?
- What are the theoretical implications of your findings? What are the policy implications of your findings?
- How can it influence your findings?
- How do you intend to share your research findings?
Give yourself some space
I can’t stress this enough, it seems counterintuitive that as you scramble to cram as much in and practice as much as you can for the Viva that you should give yourself some time off. But seriously, trust me. Do it. Take a day off, go for a walk, go do something you enjoy. A tired brain is not a brain that’s going to perform well in the Viva. I know that its really hard to do because your mind will keep going back to viva prep, but you need to force yourself to do something differently, even if for an hour. I am forever indebted to my friend Ro who gave me no choice but to go out for a walk or my parents who forced me to go food shopping to take my mind off it. It seems small and daft, but it really worked. It gave my brain a few minutes of breathing space and especially on that walk realising that, yes, while the Viva is probably the most significant thing you’ve ever done to date and yes, so much is riding on it. That you have so many people who support you and there is so much more to life than getting three letters after your name. It does put things into perspective.
The day before try not to throw up and get some sleep
I read that some people say not to touch any viva prep the day before to give your brain a rest. I agree in principle, but I still did some prep. I read those summary pages a few times throughout the day and then gave it a rest. There comes the point where you know you’ve done all you can, and you feel as prepared as you can, so doing more won’t help. I spent a lot of that day sitting in the sun listening to music and trying to take my mind off it. Whatever coping mechanism you use to deal with stress now is an excellent time to use it! I also read and made notes of the latest papers that had come out since I submitted my thesis. A read a lot of these viva prep blogs who placed so much emphasis on you knowing every single paper since you’ve submitted. Please do not spend a load of time on this! Examiners can ask you to make sure you’re aware of how your research fits in, but they cannot directly examine you on any paper that’s been published post submission. Focus on your own work, I wasn’t even asked about any new literature in my viva. Imagine if I had dedicated so much time to that, what a waste that would have been!
Go and smash it and some final tips
The Viva is undoubtedly massive, and there is no denying that the day is enormous and massively stressful. You will feel like you’re crap, that your thesis is rubbish and you’ll feel vastly underprepared despite being the most prepared you’ve ever been for anything. It happens. I felt awful before my Viva! I think any PhD student who says they’re not nervous about the Viva is either a liar or incredibly naïve, or at worst has delusions of grandeur. Well, they’ll just set themselves up for a fail. Remember, and again I read this before I went into the Viva but didn’t really believe it until after the Viva, the examiners are not there to trick you or catch you out. They’re doing their job and your examiners should ask some very tough questions, you should expect them, it is a PhD after all. But any question is never a personal attack and its never to catch you out. Remember, despite the feeling of imposter syndrome, you really are the expert in the room. You should try and enjoy it as much as you can too. My Viva was brutal and tough but it was really enjoyable once I got into it. There is no other time in your life as a student where someone outside of your supervisory team will have read your thesis cover to cover, and you can sit in a room and discuss it at length with people who are just as enthusiastic about it as you are. My parents, for example, have only read my acknowledgements of my thesis so, yeah, make the most of two strangers taking an interest in your work because your family don’t!!
I found it vital in my preparations to be critical and honest with the thesis. What is good about it and what are my weakest points. I cannot stress enough how important it was for me to know before I went in what I was going to defend until I was blue in the face and what I was happy to let go. You need to know what battles you’re going to pick in the Viva. You don’t have to defend every word, in fact, if you do you could be posing more problems than its worth. An example, if I defended the term pedagogy in my title and following sections, I have no doubt I would have had major corrections instead of the lower end of moderate. I was wise enough to know it was my weakest part of the thesis and the examiners saw it too, I was happy to not defend it, I’m glad I didn’t. On the flip side, my examiners weren’t that excited about my large section on UAV regulations and asked not once, not twice but three times was it critical. This, to me, was a fundamental aspect of my argument in the thesis and one of my mantras in the conclusion so three separate times, I defended it in the viva. I would have justified it a 4th if I had to because that was one part of my thesis I was going to defend until the end. Of course, by time they asked me a second time there was a flicker of “they’ve asked me this again, should I concede?” but no, it was a test to see me stick to my argument and defend it. By time they asked a 3rd time I was more adamant than ever to keep it in!
Be honest. Seriously, this is my final point and one that is vital in the Viva. Be honest. In mine I was asked if I was familiar with a particular set of literature which to them was essential if I had mentioned one thing, I really should have mentioned this. I was honest that I wasn’t familiar and they simply said thanks for being honest, one of your corrections is to do a small section on it. Then that was it, happy days we moved on. If I had tried to blag it, it would have caused so many more issues! You’re not meant to know everything in the Viva, you’re human. If you don’t know it put your hands up and admit it, they’ll be absolutely fine with it. If you don’t know it and you try and blag it well, they view that very dimly that’s for sure. As the old saying goes, it’s better to be thought of as a fool, than to speak and remove all doubt.
So try and enjoy the Viva, if you’ve had the right attitude, if you’ve prepared well enough then I am sure you will survive, and you will get what you’ve worked so hard for, you’ll be a Dr! Good luck and godspeed to you!
If you have any questions or even if you want me to read anything or even Skype you with some viva prep questions, let me know in the comments or get in touch on social media @TonyCliffe210. I’m currently in the process of writing a book about my PhD experience and how to tackle the many issues it throws up, so get in touch if you want to be involved in that! Or you can read about my Viva experience here: The battle of the Viva and my ode to H105
Or read here my thoughts i penned before the viva: Some thoughts about the PhD journey as i near the final battle.
If you want to chat about the PhD or viva, get in touch, us PGRs need to help each other out to survive.
Go and smash it guys! You’ve got this!

Post viva you get to wear cool badges!