How difficult it is to switch between different graduate departments within the same graduate school? And how can a student initiate the process?
Some have told me that it's easier than getting into a graduate department via PhD admissions. But I do wonder - does it depend on what school it is? (I'm at Brown). What other factors determine how easy it is to get into another graduate department? Would they look at your transcript/GRE scores/etc? I have GRE scores of 96th percentile Verbal/96th percentile Math/99th percentile Analytical/89th percentile Biology. My grades are weaker though. I'm currently a student in a Geoscience department and am considering switching to Physics or a Biology-related field.
Of course, one has to convince someone else to be able to take them on. Most of my experience is with Physics and Scientific Computing, however, and a lot of fields really value the skills that people in Physics/Scientific Computing have.