Spontaneous

In the same boat with you. Although I am not too concerned just yet. There still is a lot of time left for interviews and I imagine it also depends on an award-by-award basis.

I have heard some conflicting reports for interviews. Some of the stuff on the U.K.-U.S. site seems to say that the interviews are not always required and that some applicants might go through it for further clarification, depending on the program you are applying to. My own program advisor also told me the same. I also haven't heard anything yet, but there is still time and maybe hopefully won't need to do an interview.