<p>'My point is that if even a single subscore drops below the 25th percentile the chances of admission drop considerably. That data is reported by each college.'</p>
<p>It is? Where? Where are admit rates broken down by SAT in the fashion that would support that statement.</p>
<p>Aren't the Brown data the closest? (Amherst, Wellesely, and no doubt others report similar data.) And that data doesn't quite do it because the CR and M scores are separated in the data. </p>
<p>The 25th percentile M score at Brown is 680. No doubt a 780CR/660M has a lower chance of admission than a 780CR/750M; duh. But what about a 730CR/710M? If you average the admit rates for the 750-800CR and 650-690M groups, they are higher than if you average the admit rates for 700-740CR and M groups. But 660M is below the 25th percentile and 730/710 are not.</p>
<p>Is there data that say this is wrong and that the 780/660 really has a demonstrably lower chance than the 730/710 -- all else being equal?</p>
<p>(I suppose one could say that within the 650-690M group, the admit rate for 650-670 (below 25th percentile) is really lower than for 680-690. But one would just be saying that; the data dont' show it.)</p>