I think there were over 30 of us the day I interviewed (they said it was one of their biggest days). We all gathered in the admissions office and there were bagels and juice available. Then we had an overview lecture by Asst. Dean Lapin and found out who we were doing our panel interviews with. Then we had at least a half hour to meet and chat with other applicants in our panel group, which you ABSOLUTELY should do. It feels a lot better going in as friends than as strangers. Then the panel interview which was pretty fun and a short interview with Dean Lapin (or Dean Brown or someone else) to "update your file" and ask questions. The one-on-ones varied quite a bit. It sounds like Dean Brown is very outgoing and talkative, but with Dean Lapin be prepared to get a conversation going. Talk about what's new, ask questions, etc. Students hosted lunch and a tour, then we had a presentation from the Dean of Minority Affairs, the Dean of Education asked us for feedback (feedback is big at NW), and we did a mock PBL session as a group (a bit difficult with 30 folks).