What is an MMI?
The Multiple Mini Interview format, explained, and how to actually prepare for it.
Multiple short stations, each scored independently
The Multiple Mini Interview (MMI) is the interview format used by most Canadian medical schools, a growing number of US programs, and many CaRMS residency programs. Instead of a single long interview, applicants rotate through multiple short stations, typically 6 to 10, each presenting a different scenario or question type.
MMI stations commonly include:
- Ethical dilemma discussions
- Role-playing scenarios
- Healthcare policy questions
- Personal experience questions
- Teamwork and collaboration exercises
- Critical thinking problems
The MMI is designed to be harder to game than a single traditional or panel interview, each station is scored independently, so one bad answer doesn’t sink your whole day. But it requires a different kind of preparation: you need to be comfortable thinking on your feet across many topic types, not just rehearsing a set of canned answers.
A typical MMI station
Read the prompt at the door
You stand outside the station and read a short scenario or question on a card. A timed window to process, plan your opening, and think through where the scenario could go.
Discuss with the interviewer
Inside the station, an interviewer (or actor) listens to your response and follows up on what you actually say. Stations move fast and the interviewer may push on your reasoning.
Move to the next station
Bell rings, you rotate. Each station is scored independently by a fresh evaluator, so a single bad answer doesn’t sink the whole day, but it also means no warm-up.
Non-cognitive skills, measured across stations
The MMI was designed to assess the soft skills academic transcripts can’t, the ones that matter most once you’re in a clinical setting. Each station targets a different attribute.
Communication
Can you explain a difficult idea clearly, listen actively, and tailor your tone to the person across from you? Role-play stations are the classic test here.
Ethical reasoning
Can you identify the competing values in a scenario, walk through multiple perspectives, and land on a defensible position without sounding rehearsed? Ethics stations reward structured thinking, not memorized answers.
Critical thinking
Can you break down an unfamiliar problem, weigh evidence, and handle follow-ups that push back on your reasoning? Policy and current-events prompts probe this directly.
Teamwork & professionalism
Can you collaborate, accept feedback, and acknowledge your own limits? Teamwork stations put you in a shared task with a partner; professionalism stations probe how you handle conflict and responsibility.
Practice that mirrors the real format
Our MMI practice mirrors the real format: a timed reading phase, then a video interviewer that watches and listens, asks follow-up questions, and probes your reasoning. Same structure, plenty of reps. What you read going in, and what you get back afterwards:
- Format
- MMI station
- Reading time
- 2 minutes
- Response
- Up to 8 minutes
- Follow-ups
- Live, unscripted
You are part of an elite two-person team fighting a forest fire. You have topographical maps, GPS, two climbing ropes, two shovels, two chainsaws, a first aid kit, and a radio. Your teammate has a sprained ankle. You learn the fire has changed direction and your location is filled with thick smoke. You must meet a helicopter at a safe spot about 30 minutes away in one hour. What do you do?
Independent scoring, same as the real MMI, one bad station doesn’t sink the day, and you can see which one it was.
Areas to work on
- Strong triage, but you never said it out loud, an examiner can only score what you verbalise.
- Sixteen filler words in four minutes, clustered right after each follow-up.
Six dimensions, scored station by station
You’re on camera with an interviewer that watches and listens, so the feedback covers how you came across, not just what you said. Every station is scored on its own across the six dimensions below. That is the station independence described further up, carried into practice: you can see which station went sideways and why, rather than one number for the session.
Clarity and precision of your language, and whether you made the point persuasively. This is the words themselves.
Eye contact, composure, body language, pacing, filler words, vocal confidence, and the overall flow of the answer. This is how you performed it.
The quality of your reasoning, whether you weighed more than one perspective, and how much depth you reached before stopping.
Awareness of the human factors in the scenario, ethical sensitivity, and patient-centred thinking.
A clear opening, a logical middle, and a conclusion that lands instead of trailing off when you run out of time.
How directly and completely you addressed the question that was actually asked, including the follow-ups.
MMI practice is included in both Medical School and Residency interview prep plans. Pick the one that matches you.
