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3. Angoff , W. H. Pomplun , M. McHale , F. Morgan , R. Comparative study of factors related to the predictive validities of 1974-75 and 1984-85 forms of the SAT Willingham , W. W. Lewis , C. Morgan , R. L. Ramist Predicting college grades: An analysis of institutional trends over two decades. Princeton, NJ Educational Testing Service