Grad School Interview Questions
Practice PhD and Master's interview questions by category. Learn what a strong answer covers, no scripts, just frameworks for thinking out loud.
Interview Question Sampler
Choose a category to see a real interview question and what makes a strong answer. These are drawn from actual PhD and Master's admissions interviews.
Select a category and click "Show a question" to begin.
Questions You Should Ask Them
Asking thoughtful questions is itself an admissions signal. They want to see that you've thought seriously about whether this programme, advisor, and group are right for you. Pick 2–3 to ask, tailored to what your research into the programme revealed.
- What does the typical 5-year timeline look like for students in this group? When do students usually publish their first paper?
- How does the group approach advising: is it one-on-one, do students co-advise, or do you rotate advisors?
- What funding is guaranteed, and how does it scale if you secure external fellowship?
- What's the cohort size and structure? Do first-year students rotate through projects?
- What do alumni from this group typically do after graduation: academia, industry, both?
- If I hit a roadblock or want to pivot research directions, how do we handle that conversation?
- What mental health and professional development support does the department offer?
- Are there annual reviews or milestones, and what happens if a student isn't on track?
Format & delivery: read this first
Interview structure varies hugely. Some programmes hold panel interviews (3–4 faculty), others do 1-on-1s. Some are in-person, others over video. You may interview with faculty in your exact research area, or a broader committee, or even graduate students. Always ask the programme which format they use before you prepare.
You are not expected to know everything. Interviewers ask hard questions precisely to hear how you think when you don't know. Saying "I'm not sure, but my guess would be…" or "That's outside my expertise: can you tell me more?" is always better than bluffing.
When you prepare, imagine yourself explaining your thinking aloud to a colleague over coffee. That's the tone that lands. Rambling is okay; regurgitating a speech is not.
How to use this tool
For each category, we've curated one real interview question. Click "Show a question" as many times as you need: each time you'll see a different question from that category. Notice that the framework doesn't give you an answer; it tells you what an interviewer is listening for.
Read the bullet framework. Then ask yourself: Can I give an example? Do I know why I believe this? Could I defend it if challenged? If the answer is "no" to any of those, that's a signal to study before your interview. If yes, you're ready to talk about it naturally.
The goal is not to memorise answers. The goal is to know your own research, your fit with the programme, and what you actually want well enough that you can discuss it without notes.
FAQ
What if the interview format is completely different from what I expected?
Different formats favour different skills. Panel interviews reward clear, concise answers because you're splitting attention. 1-on-1s often go deeper and more conversational. Group interviews or lunch interviews test how you interact with peers and listen to others. All of them reward honesty and the ability to think aloud. Prepare your research thoroughly, then trust that the core skill, knowing your work and your motivations, translates across all formats. And yes, it's fine to say "That's a great question; can I think about it for a second?" if you need a beat.
How much should I talk about my own research proposal versus theirs?
The balance depends on what you're applying for. PhD interviews often start with "Tell me about your research interests," which is your cue to pitch your own ideas and explain why their group is the right fit for you. Master's interviews may focus more on your background and what you want to learn. Before your interview, look at the programme's research areas and faculty pages. It's almost always a sign of strong preparation if you can say "I'm interested in [your topic], and I see [Professor X's] work on [specific paper or project] as directly relevant to what I want to do." That shows you've done homework and aren't generic.
What if I freeze or go blank mid-answer?
It happens. Pausing for a few seconds is normal and shows you're thinking. If you truly lose the thread, it's fine to say "Sorry, let me back up" or "I'm circling: let me try that again." Interviewers are experienced; they know nerves are part of the day. The fact that you can recover and collect your thoughts is often more impressive than never having hesitated. If it's really bad (you blank on a key fact), you can offer to follow up by email later. But most of the time, a few seconds of silence feels much longer to you than to them.
Should I have a list of weaknesses ready, like in job interviews?
Not in the same way. You're unlikely to get asked "What's your biggest weakness?" unless it's a behavioural or skills interview (which is rarer in PhD/Master's admissions). However, be prepared to talk about gaps in your background honestly. If you're transitioning fields, or your GPA or GRE was weak, or you have no research experience, frame it as a genuine gap you're aware of and keen to fill in grad school. That shows self-awareness and drive. What matters most is that you've thought seriously about what you need to learn and why this programme is the place to do it.
Can I ask for feedback on my answer or ask them to repeat a question?
Yes to both. If you didn't understand a question, say so: "Can you rephrase that?" or "I want to make sure I understand what you're asking" is perfectly acceptable. Asking for feedback ("Did that answer your question?" or "Is there anything specific about my research background you'd like to know more about?") can actually help you steer the conversation toward your strengths and shows engagement. Just don't ask it for every question; use it strategically when you sense they want more detail or clarity.
Sources
- Carnegie Mellon University Graduate School, admissions FAQs and interview process overview.
- Yale Graduate School of Arts and Sciences, graduate application and interview information.
- Stanford School of Engineering, Graduate Admissions, interview and selection process details.
- University of Chicago, Graduate Success Resources, interview preparation guides for prospective graduate students.
- MIT, Graduate Programs, general graduate admissions and interview guidance.
- Inside Higher Ed, authoritative news and guidance on graduate admissions practices.