MockDefense

MockDefense PhD Mock Defense Practice

Practice your PhD thesis defense with an AI committee that asks the same questions your real one will — methodology, significance, and the gaps you haven't patched yet.

mockdefense.org/mock-defense
R
Dr. Reyes
Methodologist

Walk me through the threats to validity you considered — and the ones you decided to live with.

The main one is selection bias. I controlled for baseline attitudes, but…

Your Examiners
Dr. HaleStrict

Dr. Hale

Committee Chair

Runs the room and keeps it fair — but won't let you dodge a question.

Dr. ReyesStrict

Dr. Reyes

Methodologist

Picks apart your design, stats, and sample. Wants specifics, not hand-waving.

Prof. SinclairStrict

Prof. Sinclair

Outside Examiner

The skeptic gunning for your contribution. Asks the brutal “so what?”

Common questions
How is this different from a mock with my advisor or labmates?

Your advisor already knows your work and wants you to pass. Labmates pull punches. Here the Outside Examiner has no stake in your success and will push on your contribution until you justify it. That pressure is the point.

Will my dissertation content be used to train AI models?

No. Session transcripts are not used for training. Your unpublished work stays yours. If that ever changes, you'll be told before it does — not buried in a terms update.

How rigorous is this compared to a real defense committee?

The methodologist asks the same category of questions a real one does — sample size, validity threats, statistical choices. What it can't replicate is the room, the politics, or your specific advisor's style. Treat it as drilling the content, not the performance.

I haven't finished writing yet. Is this still useful?

Yes, if you can give a 2-minute summary of your argument. The committee will find the gaps you haven't patched yet. Most candidates find that useful — some find it brutal. Either way, better now than in the room.

Is there a free version? What's the catch?

Yes. The free tier gives you one focused drill — Dr. Hale (Chair) runs roughly five questions on your methodology and contribution. No card required. For unlimited full mock defenses with all three examiners, per-question scoring, and a written readiness debrief, it's $19/month or a $49 Defense Pass (90 days, one payment). There's a 14-day readiness-or-refund guarantee on both.

One session before it counts

See if you’re ready.

Start with a free drill — no card required. Pick your mode, summarise your dissertation, and the committee takes over.