A major longitudinal study of California community college students involved following a sample of 35,000 students for three and one-half years. Near the end of the study, enrollment and performance data for students who transferred to the University of California and the California State University and Colleges were collated through 1978. The transfer study focused on: (1) student characteristics (sex, age, ethnic status, admissions and final enrollment status, and college majors); (2) performance in the community college measured in terms of persistence, credits earned, and grade point average (GPA); and (3) performance at the senior institution measured by advanced standing credit, GPA, persistence and graduation rates, and major. Findings indicate that the overall, gross transfer rate was less than 15%. Of the transfers, 58% were men, 73% were under the age of 20 when first enrolled, at least 63% were not from an ethnic minority group, and most came from the more traditional persisting groups of community college students. While 53% of the transfers had GPA's of 3.0 or better before transfer, about 40% of the State University transfers maintained equivalent GPA's. The California community colleges seem to have become bifurcated institutions: traditional two-year colleges with programs leading to degrees for transfer, and postsecondary institutions for older, part-time students with different objectives. (RC)