Using longitudinal survey data, the present study examined the effect of par-
ticipation on career development skills in 6 career education experiences and
school success among South Korean adolescents (2,473 young men, 2,132 young
women; mean age = 15.86 years). Regression analyses indicated that students
who participated in career education programs in school once or twice over a
2-year period had the highest scores in both career development skills and school
success. In contrast, there was no relationship between career education, career
development skills, and school success for students who participated in career
education programs only once or not at all. Results support the influence of
career education interventions on students’ career development skills and school
success. This study provides accountability information on the effectiveness of
career education interventions at South Korean secondary schools. The authors
offer suggestions about more effective career interventions that can be applied
in South Korean high schools.