The predictive value of mental tests that satisfy Spearman's tetrad criterion

Abstract

Coefficients of correlation between the University of Texas Freshman Psychological Examination and scholarship were 0.447, 0.438, 0.605, and 0.580 for the 1924, 1925, 1926, and 1927 forms respectively. Spearman's tetrad criterion was satisfied when applied to the intercorrelations of the 1926 and 1927 forms, and not satisfied by the earlier forms. Since the higher correlations between test scores and scholarship were obtained where the criterion was satisfied, it would seem that the school grades are in a large part dependent upon g. (PsycINFO Database Record (c) 2016 APA, all rights reserved)