When should I expect to hear about whether I will be offered a callback?
The length of time it will take to hear about a callback varies from city to city and firm to firm. Some interviewers have the authority to extend callback invitations on the spot or to make calls that evening. Others must first meet with members of the hiring committee and discuss all candidates from Penn and even from other schools before making invitations. If you haven’t heard either way, you are still in the mix — be patient.