The interpretation of subtest profiles from intelligence testing remains popular among many practitioners who use subtest performance to draw diagnostic conclusions, in spite of criticism by some researchers, who point to the low reliability and predictive validity of subtest scores in predicting achievement outcomes. Prior research outlines two…

Cultural capital, originally a general sociological concept, has been transformed into a construct that is often applied in predicting scholastic attainment. Intellectual ability (IQ) has also been proven to be a strong, although basically psychological, predictor of educational attainment. However, these strands of research have hardly been…

This paper offers a preliminary analysis of the effects of a semi-segregated school system on the IQ's of its students. The basic data consist of IQ scores for fourth, sixth, and eighth grades and associated environmental data obtained from their school records. A statistical model is developed to analyze longitudinal data when both process error…