Practice and exposure are the ways, not first time right.

I am young and I was never good on standarized tests or in school only because I am a first time foreigner and didn't know how to study well in a new country. After talking to many students with majors in psychology and some in history, I conclude my research great people become great because of practice and exposure. Not getting it right the first time.

I agree that some "genius individuals" score high in tests first time or in small retakes without much studying, but the real world changers are those with scarred experiences and unbias learning in making great changes. And the people with those traits are Steve Jobs and Bill Clinton (will explain after getting some posts).

I have a strong conviction now that to get a high GMAT score, you have to practice many tests from the official maker (GMAC) and learn from your mistakes with an unbias approach. I don't have many resources available and I am not a genius to score well, but going through many tests and not letting bad experiences "kill me" will only "make me stronger." To me, there is no such thing as doing quick study in days and expect to score high next week. Ridiculous. Continious trial and error is what makes a person an experienced human.