Multiple regression was used to investigate whether the perfectionism perceptions, automatic thoughts, and the grade point average (GPA) of young adolescent students predict their career decision-making self-efficacy levels. The final sample included 383 students in their eighth year of school. Results indicate that positive perfectionism, automatic thoughts, and GPA predict students' levels of career decision-making self-efficacy. Furthermore, exploratory analyses indicated that female students had higher levels of career decision-making self-efficacy than did male students, as did students whose mothers were graduates of two and four-year postsecondary educational institutions versus high school. Practical recommendations and research suggestions are proposed.