The measurement of locus of control: Assessing more than meets the eye?

Ambiguities in the conceptions and measurement of locus of control were inv estigated in this study. Specifically, some psychometric properties of seve ral widely used measures of perceived behavior-outcome contingency, interpe rsonal power, and social self-efficacy were assessed. To different degrees, the results indicated that ail three measures of perceived behavior-outcom e contingency lacked convergent and discriminant validity. Implications for interpreting past research, directions for future investigations, and limi tations of the present study are discussed.