Hello!
I applied during the early decision cycle and was accepted into the program about a month ago. There was a total of 12 students selected to be interviewed on the date that I was interviewed. They gave a 30 minute presentation on the program when we all arrived. After that, they gave out those blue little essay books for the essay portion. There were 4 interviewers. They each called up a student for an interview as the others continued to write the essays. There is no time limit on the essays. Each book had two questions and you have to choose one to write about. They were all non-PT related. I am assuming they just want to learn about your personality so I don't recommend relating it to PT unless it is necessary. Once you are done with the interview, you can go back to finish/start your essay. The interview, itself, was very laid-back! It was more like a conversation than anything else. The questions were pretty much generic. They really don't want to stump you with any difficult questions. They are focused on learning about who you are and how you think. My interview was about 20 minutes. My advice is to just be relaxed through it all! Good Luck!