i submit my application, and communicated with my adviser several times. and they accepted me . it's very nice here, and you will like it. because im international students, so all the process is through email and paper material.

Pretty brief, it is a matter of being accepted or not. It is mainly based on your GPA and GRE score. They do not perform an interview. Usually, consist of an email of saying you got accepted as a grad assistant or not.