Sex Similarities and Differences in Locus of Control in Relation to Academic Adjustment Measures

Abstract

Correlations between Rotter's Internal-External (I-E) Control of Reinforcement Scale and the Omnibus Personality Inventory (OPI) were predicted based on previous research and a theoretical expectation of a relationship between I-E and adjustment. It was also expected that there would be sex differences in the personality profiles correlated with internality. After both tests were administered to 140 male and 130 female college freshmen, correlation and stepwise multiple regression analyses indicated significant correlations (p < .05) between I-E and several OPI scales and between I-E and several OPI factors. Sex differences were obtained in the variables most predictive of I-E. These differences were presumed to be independent of the structure of the OPI since factor comparisons indicated an absence of sex differences on that instrument. These findings have implications for counseling and further research using the I-E variable.