<p>With respect to UIUC falling (post #80), I think it might have something to do with the percentage of people taking the SAT vs. the ACT.</p>
<p>I read in my statistics book that the mean SAT score in the Midwest is higher than any other place in the country because mainly the people interested in competitive, out-of-state colleges take the SAT as opposed to the ACT. So the better group of people take the SAT, whereas in a place like Connecticut all college-bound people take the SAT.</p>
<p>I think the SAT has become more popular vs. the ACT since 1966 in the midwest. I think this may have pushed down the average SAT score of UIUC.</p>