Validity of the Internal-External Scale in Its Relationship with Political Position

Abstract

The study was designed to interpret previous reports of a relationship between left wing political position and externality on Rotter's (1966) Internal-External (I-E) Scale. I-E items phrased in the first person were associated with a criterion measure of locus of control, and externality on the scale predicted inferior performance in a skill-controlled task. However, political position was related to neither the criterion measure of locus of control nor to successful performance in a skill-controlled task. Thus, there was no evidence that political position was related to locus of control in spite of its relationship with the I-E Scale. There was discussion of implications for the validity of the I-E Scale and for studying relationships between personality and political variables.