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<p>OK, I’ll take your word for it. I’d note, however, that there’s less of a discrepancy in CR v. M scores at the 700-740 range than at the 750-800 range. According to the College Board, among the 1.5 million 2008 college-bound seniors who took the SAT at least once in high school, 45,360 scored in the 700-740 range on CR, as opposed to the 56,755 who scored in that range on Math. So that’s about 11,000 more Math scores in the 700-740 range, which means 25.1% more Math than CR scores in that range.</p>
<p>At the top 750-800 range, the gap is wider: 40,466 Math scores in that range, as opposed to 24,569 CR scores—a difference of nearly 16,000, or 64.7% more Math than CR scores in the very top range. This is a huge difference, especially as these are presumably the top students who the top colleges are going after.</p>
<p>You suggest the two parts of the test might be scaled differently, so that the Math section discriminates more at lower levels. Possible, but I don’t think the data show that. Both CR and M show a “normal” distribution of test scores clustering around the mid-range, with the largest numbers of test-takers in the 500-540 range (257,487 for CR, and 245,820 for M), as well as the 450-490 range (256,810 for CR, and 238,359 for M). Below that level the numbers decline sharply, though at the low end (sub-440) there are definitely more low CR scores than there are low M scores, about 48,000 more CR scores in the sub-440 range.</p>
<p>Yet the 25th, 75th, and 75th percentile medians for the total group are remarkably close:
75th 580 CR 590 M
50th 500 CR 510 M
25th 420 CR 430 M </p>
<p>So what do we make of it? It seems a fairly straightforward proposition that extremely high CR scores are much scarcer than extremely high M scores. It’s also notable that very low CR scores are considerably more common than extremely low M scores. At the middle ranges the numbers are comparable, resulting in comparable 25th, 50th, and 75th percentile medians.</p>
<p>The score distributions on SAT II subject tests are consistent with this. Among 2008 college-bound seniors, 119,180 took the SAT II Literature subject test; of those, only 7,387—6% of the total—scored in the 750-800 range. In contrast, 150,352 took the Math 2 subject test; of those, 35,288—23% of the total—scored in the 750-800 range. So we can assume there were at most 7,387 applicants who scored 750+ on both CR and SAT II Lit—described by some as “CR on steroids,” less a test of substantive knowledge than a test in careful reading and interpretation of difficult texts. But there might have been as many as 35,288 who scored 750+ on both SAT M and SAT II Math 2—roughly five times as many top Math scorers as top CR + Lit scorers. I stand by my earlier statement that top CR scores are much scarcer than top Math scores, and consequently highly sought after by the very best colleges and universities.</p>