A principal axis factor analysis of the 58 occupational and nonoccupational scales of Form T of the Strong Vocational Interest Blank was performed using the data of 1,068 males representing a wide range of age and socioeconomic status groups. Five factors, accounting for 80% of the variance, were I, Person vs Task Orientation; II, Theoretical vs Practical Interaction Style; III, Tough vs Tender Mindedness; IV, Self-assertiveness vs Retiring Altruism; and V, Business vs Healing. Correlations of these factors with the 16 PF, the Allport-Vernon-Lindsey Scale of Values, education, and socioeconomic status were used to provide psychological interpretations of the factors. Both occupational groupings and personality correlates show substantial agreement with J. L. Holland's (1966) system.