You may not be aware of the new GRE® Diagnostic Service, available to any test takers who have already taken the Revised exam. Did you know that you can actually see how many questions you missed, the difficulty level of each question, how long you spent on each question, and the categories of the problems you missed? (You can’t see the actual questions, though).
Of course, this information is mainly helpful to those who have taken the real exam and intend to take it again. Here’s a screenshot of a small portion of my results:
Of course, we all want to avoid having to retake the real exam. One way to do that is to make sure you are practicing with serious computer-based practice exams. Studying on paper, without time limits, is just not the same!