This is an investigation of the relationship between the Strong Vocational Interest Blank, Form T399, and the Rotter Internal-External Control of Reinforcement Scale (I-E scale) which measures locus of control of reinforcement. Zytowski has suggested a relationship between locus of control and occupational interest. To verify this, he correlated the SVIB with the I-E scale and concluded that such a relation did exist. Because the SVIB has been revised since Zytowski's study, a comparable study using the newer SVIB form was completed. Using a college freshman sample of 736, Pearson correlation coefficients were computed between the I-E scale and the SVIB; several correlations were significant at the .10 level; however, the largest correlation was -.16.