<p>Oh yea? I too can site random studies that mean nothing ..</p>
<p>Looking at the predictor variables individually HSGPA is the best single predictor of freshman grades at UCR .</p>
<p>Validity research at individual institutions illustrates the weak predictive ability of the SAT. One study (J. Baron & M. F. Norman in Educational and Psychology Measurement, Vol. 52, 1992) at the University of Pennsylvania looked at the power of high school class rank, SAT I, and SAT II in predicting cumulative college GPAs. Researchers found that the SAT I was by far the weakest predictor, explaining only 4% of the variation in college grades, while SAT II scores accounted for 6.8% of the differences in academic performance. By far the most useful tool proved to be class rank, which predicted 9.3% of the changes in cumulative GPAs.</p>