Results of the initial implementation of longitudinally-structured action research at the University of California, Irvine, are presented. The objective is to determine whether combining action research with an organizational cultures approach is a viable way to influence the culture of a research university. The intended outcomes include the realization of proportionate representation of three minority groups admitted to, enrolled in, and graduated from a research university, as well as the cultural diversification of the curriculum. The underrepresented minority groups are Chicanos, Blacks, and American Indians. Attention is focused on environmental influences, organizational values, communication networks, rites and rituals, and heroes (individuals who work toward the goal of a culturally-diverse campus). This student affirmative action project has resulted in the establishment of campuswide quantitative and qualitative goals and objectives that focus on an individual student's developmental growth stages from junior high school through college enrollment and graduation. Recommendations are included on ways to achieve cultural changes in higher education institutions. Appended are the philosophy statement of the Student Affirmative Action Committee of the Academic Senate, a joint statement of that committee and the Divisional Committee on Affirmative Action, and a memo to the Council of Deans. (SW)