<p>SAT is not that far from ACT. If you do not remember certain math formula, your IQ will not help you. If you did not have sufficient amount of practice in solving math problems in your classes (primarily in middle school), your IQ will not help either. Again, if you cannot read English very well (might be whole range of reasons, including English as a second language), then IQ will not help either. And last but not least, D’s comment about English section was “it is just a common sense, I do not need to prep.” (result - ACT=35 in this section), well, if one does not know English very well, would that be the case and would that indicated the mental inability of any sort? I do not think so. I have looked very closely at both and actually did many math. Well, because of my background, math was nothing for me while D. realised that she needs to refresh it.<br>
I can see that prep. is smart if it is customized. I can see that some, very few though, will do very well without prep. I just do not see despite all of the studies what it has to do with IQ. Who were included in this studies? Did they include very brilliant people who did not have sufficient background in English?</p>