text: To begin with, there is no concept of "pass" or "fail" on the test.  It is just a matter of whether or not your score meets the criteria of a particular school to which you are applying.  Secondly, the test was really designed to be an aptitude test, not an achievement test.  If you talk to most people who did really well on the test, they did not study at all, but simply had the basic understanding of how to figure out the answers to begin with.  Unless you are suffering from major test anxiety each time you take the exam (in which case I would advise a prep course), it is unlikely that simply studying on your own will raise your scores significantly.  I'm sorry to be the bearer of bad news, and I don't mean to insult you, but maybe some other subject would suit you better?