text: Project Reach focuses on promoting positive youth development through families and organized after-school activities. Currently, we have several projects focused on the predictors of children’s and adolescents’ participation in organized activities and the impact of those activities on individuals’ adjustment from childhood through adulthood. We also have projects examining how families help support high school students’ motivational beliefs in STEM (Science, Technology, Engineering, and Mathematics) as well as how those motivational beliefs relate to students’ STEM outcomes in high school and college. Finally, we are collaborating with an exciting after-school math enrichment activity held at UCI where we are focused on best practices including culturally responsive practices and program impacts on the youth participants and undergraduate student mentors. In all of our work, we focus much of our attention on these issues for diverse youth.