Dimensionality of three adult, objective locus of control scales

Summary: The current conceptualization of the locus of control construct as unidimensional was challenged. The Rotter I-E scale, James I-E scale, and Adult Nowicki-Strickland I-E scale were examined with regard to their reported psychometric properties. The three scales were factor analyzed using a principal components method with varimax rotation. Results indicated a multifactor makeup for the three scales. It was suggested that attempts to measure a generalized expectancy for control be abandoned and that, instead, measurement attempts focus on the development of instruments specific to the behavioral and situational domains for which behavioral understanding, prediction, and control are sought.