From what I know...
No essay - Baylor, Creighton (RDEP), Marquette, Tufts, UNLV, Temple
Essay - VCU. It was a hypothetical about a sterilization crisis that they wanted you to write about and demonstrate what you would do to resolve the issue.
Good luck!
-As for the time; VCU really gave us as much time as we wanted though it is done in the same room as the other interviewees so it kind of felt like a competition to see who could answer the hypothetical the quickest. Don't read to much into my observation because I was accepted and I was the last in the room. I took about 10-15 minutes to finish it, no biggie.