This study tested the hypothesis that measured aptitudes and self-ratings of these same aptitudes reflect a common domain of psychometric behavior. Male and female applicants for vocational guidance completed a self-rating scale and then the General Aptitude Test Battery (GATB). The self-rating scale contained six vocational/educational aptitudes.…

Spearman's hypothesis states that the differences between Blacks and Whites in psychometric IQ are attributable to a fundamental difference in general intelligence ("g"). To investigate this hypothesis, Jensen devised the method of correlated vectors. This method involves calculating the correlation between the factor loadings of the…