This study of 14,252 college seniors from 50 institutions representing 25 states and the District of Columbia explored the influences of higher education on eight leadership outcome measures theoretically grounded using the social change model of leadership development. Hierarchical regression models explained between 31% and 40% of the variance in students' reported capacities across the eight outcomes. Results identified socio-cultural conversations with peers, faculty mentoring, and participation in community service as key influences which were complemented by findings related to the importance of leadership efficacy as an intermediate outcome. (Contains 2 tables.)