A study examined the stability of career interests of adolescents using the Strong-Campbell Interest Inventory (SCII). Participants were 271 freshmen from a rural Midwestern state who took the SCII two times, 3 years apart. Based on this sample, comparisons were made on occupational themes and basic interests of the SCII. Results revealed that these adolescents were relatively stable in their inventoried career interests in high school, supporting previous research. Significant differences in mean scores on the SCII were found for time period, gender, and parent occupation. The study supports the usefulness of the SCII measure with high school students. It also suggests that variables of age, gender, and parent socioeconomic status must be considered when interpreting the stability of occupational interests of students. The study shows the importance of not only assisting young adolescents with career exploration but also of involving family members in discussions of their career interests and options, especially for families in rural areas where exposure to careers may be more limited. Further research should investigate whether the examination of a broader set of social and contextual variables may give greater insight as to how and when adolescents clarify and eventually commit to their vocational choices. (Contains 18 references.) (KC)