Unrest in the early 1970s stimulated a need to understand undergraduates' motivations. The Clark-Trow Typology (Clark & Trow, 1966) examined student behavior (i.e., academic, collegiate, vocational, and non-conformist) according to identification with the institution and involvement with ideas. The Student Interest Survey included questions based on the Typology, and was administered at five-year intervals beginning in 1976 to undergraduates at a research extensive institution. Results suggested statistically significant shifts in subcultures. For example, the percentage of students in the academic subculture declined from 37% in 1976 to 18% in 1996, whereas the collegiate subculture increased from 17% in 1976 to 34% in 1996. Differences in leisure interests within subcultures are discussed, along with implications for addressing undergraduates' leisure interests. (Contains 1 table and 2 figures.)