The geological sciences department.
I'm not at Cornell, but a friend/classmate is applying there this year and had the same situation as you. Apologies if my English made it seem like I am there.
Well, I'm not so sure. I know of some grad students at my undergrad department (comparative to Stanford) who were accepted without visits, but I don't know about Stanford specifically.
One of the schools I interviewed at told me they're interviewing other people applying for the same professor as well, and since they told me that my anxiety spiked up
edit: I just realized this is in psychology lmao. Still figuring this site out, please disregard
Stanford is doing interviews (potential grad visit) right now. I was there last Friday. I think there are still more people coming in for interviews so they won't make decisions until after the interviewing process is over.