The Multiple Mini Interview Explained: Format, Stations and How Canadian Schools Score It

What the Multiple Mini Interview is

The Multiple Mini Interview (MMI) replaces one long conversation with a small panel with a circuit of short, independent stations. You move from station to station on a timer, facing a new scenario and often a new evaluator each time. McMaster's MD program , which pioneered the format, developed it in 2004 in response to research showing that traditional one-on-one or panel interviews produced inconsistent scores for the same applicant depending on which interviewer they happened to get.

Most Canadian medical schools now use the MMI or a close variant of it for admissions interviews. The logic is straightforward: a candidate's performance on one topic with one interviewer says little about how they handle a different topic with a different person, so testing across many short, independent samples gives a more reliable overall picture than one long conversation.

How the stations work

A typical MMI circuit runs through a series of stations set up in separate rooms or booths. Outside each station you get a short reading period to review a prompt: a scenario, an ethical dilemma, a policy question, or a task instruction. You then move inside for a timed response period, where you talk through your reasoning with an evaluator, respond to an actor playing a role, or complete a task with a partner.

Some stations are conversational: you discuss a scenario one-on-one with an evaluator who asks follow-up questions. Others are task-based: you work with an actor to deliver difficult news, negotiate a disagreement, or explain a concept in plain language. A few schools include a collaborative station where you work with another applicant on a shared task, testing teamwork directly instead of asking about it.

What stations actually assess

MMI stations are built to test the skills a doctor needs day to day, not your academic record. Common areas include:

• Ethical and moral reasoning: how you work through a scenario with no clean right answer.

• Communication: how clearly you explain something to a non-expert or deliver sensitive information.

• Critical thinking: how you break down a problem and justify a decision under time pressure.

• Collaboration and conflict resolution: how you handle disagreement or work with a partner toward a shared goal.

• Professionalism and self-awareness: how you reflect on a past mistake or a personal limitation.

• Awareness of the health care system and social issues in medicine: how you reason about access, equity, or resource allocation.

None of this tests your GPA, your MCAT score, or memorized medical knowledge. Admissions committees already have that data from your file. The interview exists to test the parts of your application a transcript cannot show.

How MMI scoring differs from a panel interview

In a traditional panel interview, one small group spends an extended block of time with a single candidate, forms a general impression, and scores the whole conversation as one unit. That structure is vulnerable to the halo effect, where a strong early answer colors how the panel rates everything that follows, and to the fact that a single bad rapport with one interviewer can tank an otherwise strong candidate.

The MMI is built to avoid both problems. Each station is scored independently by an evaluator who does not see your file, does not know your scores at other stations, and only rates the specific skill that station is designed to test. Your final MMI score is the sum or average of many independent samples rather than one global judgment. Research on the format has generally found it produces more reliable and more predictive scores than panel interviews, which is why it spread from McMaster to most other Canadian medical schools.

How to prepare

In-person, virtual, and multiple circuits

Schools run MMI day either in person on campus or virtually over video, and some schools have used both formats across different admissions cycles. When a school interviews a large applicant pool, it typically runs several circuits at once, meaning different groups of applicants pass through similar stations on different days or in parallel rooms with different evaluators. To keep this fair, schools statistically adjust station scores across circuits, so a stricter evaluator on one circuit does not systematically disadvantage the applicants who happened to draw that circuit. You do not need to worry about which circuit or which evaluator you get. The scoring process is built to neutralize that variation.

Because the format tests reasoning and communication rather than recall, memorizing model answers backfires. Practice structuring your thinking out loud: state your initial position, walk through the competing considerations, and land on a reasoned conclusion within the time you are given. Practice with a timer and with people who can play the role of an evaluator or actor, since performing under a strict clock is a skill on its own separate from the content.

Review your own experiences for concrete examples of times you handled conflict, made an ethical judgment call, or communicated something difficult. Stations frequently ask you to draw on a real example, and generic answers read as weaker than specific ones. Check your specific school's admissions page for its exact interview format and any station-count or timing details, since these details vary by school and by admissions cycle.