In this 1981 study, 134 female and 101 male undergraduates were asked to indicate their perceptions of their capabilities to successfully complete the educational requirements and job duties of each of 10 traditionally female and 10 traditionally male occupations. Students also indicated their degree of interest in and extent of consideration of each occupation. Finally, American College Test Math and English subtest scores were obtained. Results indicate significant and consistent sex differences in self-efficacy with regard to traditional vs. nontraditional (for females) occupations: males reported equivalent self-efficacy with regard to the 2 classes of occupations; females reported significantly higher levels of self-efficacy with regard to traditional occupations and significantly lower levels of self-efficacy with regard to nontraditional occupations.