The exploration of African American adolescents' career development has gained increasing attention in light of literature describing various barriers impacting their educational and career development and goals. Social Cognitive Career Theory (SCCT) was used as a theoretical framework to help shed light on the contextual factors that influence their career development. This study examined the relationship between career decision self-efficacy, ethnic identity, academic self-concept, and achievement of African American high school students. The sample consisted of African American high school students enrolled in Upward Bound programs. Through quantitative methods, this study adds to the career development literature by including ethnic identity, academic self-concept, and achievement as combined factors that may impact the career development of African American adolescents. Specifically, the results of this study assists teachers, administrators, parents, and school counselors with understanding career decision self-efficacy as it relates to ethnic identity, academic self-concept, achievement, and demographic variables. This study also provides implications for career counseling interventions in schools designed to assist with career development. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.]