The development of locus of control was compared in rural Appalachian Follow Through participants and in lower and middle-class comparison groups. Participation in Follow Through did not enhance internality. A social class by sex interaction was found, and correlations between locus of control and achievement differed for social classes.…

In an attempt to specify the nature of the variables associated with socioeconomic status, Jensen has proposed a two-level model of mental abilities. The first level represents associative learning. The second level involves higher-order conceptualization, and problem solving. The purpose of the present study was to develop a matrix completion…