A study was conducted to investigate congruency between college students' vocational interests and their chosen academic major as an implementation of their self-concept. Of the 248 randomly selected college juniors and seniors who received the study instruments the response rate was 76% (188 responses). The instruments used were the Strong Campbell Interest Inventory (SCII) and the Wallace Self Concept Scale (WSCS). The dependent variable was congruence between a student's college major and the personality type or profile on the General Occupational Theme subscales of the SCII. Results confirmed the hypothesis that students with high self-concepts tended to have high congruence between the vocational interest profile and selection of a major. Conversely, students with low self-concepts tended to have low congruence between vocational interest profiles and selection of a major. These relationships were not moderated by gender or ethnic origin. Implications of the results for career counseling are discussed. Contains 11 references. (KM)