If the MCAT were just a test of intelligence, then there wouldn't be much point to studying for it, would there? But obviously we all know that people can significantly increase their scores by studying, and there is a whole industry dedicated to training them. That being said, I don't think that the MCAT is just a test of how much you studied, either, because you have to be able to take that information and use it in new situations (for the science sections) or analyze arguments you've never seen before (for the VR). I would say that it primarily tests your logic and reasoning skills (that's why all of the philosophy majors do so well), and I would agree with whomever said that it tests your analytical skills; that is basically what I'm trying to say also.