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<p>I also strongly suspect that certain grades within the ‘a-g’ classification are far more predictive than others. Top grades in high school math and physics are probably far more predictive than top grades in, say, social studies. </p>
<p>Heck, I am almost certain that grades in different classes in the same subject are more predictive than others. For example, it might well be true that high school geometry grades are more predictive than are high school trig grades. Or vice versa. That’s what the data can determine. </p>
<p>But, as I said, all you have to do is use the data. But the fact that they have this data is undeniable.</p>