Youth development programs can achieve positive social outcomes, however studies comparing the influence of different program components are rare. Structural equation modeling of longitudinal, multilevel data (N = 327) from Project K, a multi-component youth development program, assessed how experiences of engagement or support in each component affected social outcomes. Participants reported significant gains in social self-efficacy and sense of community after the program. Engagement in the outdoor adventure and support during the mentoring partnership components significantly contributed to observed social gains, while engagement in the community service component did not. Results confirm youth development programs can positively influence adolescent social development, while highlighting the importance of moving beyond "black box" investigations in order to maximize program impact and efficiency.
Keywords: Adventure programs; Mentoring; Program evaluation; Self-efficacy; Social development; Youth development.