<p>A math professor recently did a study of performance in Calc I compared to SAT scores for two groups of students several years apart and found that although SAT scores had essentially remained the same, the calc performance by the students had actually decreased noticeably. The study is a bit ad-hoc with small numbers, but very interesting nonetheless:</p>
<p><a href=“http://www.math.jhu.edu/~wsw/89/study89.pdf[/url]”>http://www.math.jhu.edu/~wsw/89/study89.pdf</a></p>