MMI is a new interview technique that is being tried in medical schools, and perhaps will expand to residencies. In general, the idea is that rather than several long (~30 minute) interviews, you have multiple short (~5 minute) interviews. Each interviewer is given one specific question to ask, or task to do. The idea is to standardize the interview process, as each interviewer sees all candidates and scores them against each other. Some stations may be a question, others may be a task to perform. Sometimes the station involves more than one applicant at a time (i.e. a group of applicants who have to perform a task as a team).
Usually you sign a NDA prior to the interview which prevents you from disclosing what the topics / tasks were.
