I have a bunch of questions regarding the GRE Physics test. If you have answers to any of these questions or any general advice for taking the test, please chip in with your ideas. 1. How is the computerized test different from the paper test ? Specifically, do you get to know your score immediately after the test, or is there a waiting period ? 2. Is the difficulty level of the questions varied by some active feedback mechanism (like they are in the GRE General test) ? 3. Does anyone know roughly what raw scores correspond to what percentiles ? 4. Any suggestions for preparatory material are welcome. Thanks in advance.