ADAPTATION OF THE FOURFOLD TYPOLOGY DEVELOPED BY CLARK AND TROW TO THE JUNIOR COLLEGE ENVIRONMENT PERMITS DISCUSSION OF THE ROLE OF SOCIOLOGICAL FACTORS IN EDUCATIONAL PERFORMANCE. STUDENTS OF THE FOUR TYPES DIFFER PRIMARILY IN THEIR VALUE COMMITMENTS TO (1) THE VALUES OF THE ADULT WORLD AND (2) THE PURSUIT OF INTELLECTUAL IDEAS. THE SUBCULTURE TYPOLOGY CONSISTS OF THE "ACADEMIC" TYPE CHARACTERIZED BY (1) AND (2), THE "VOCATIONAL" TYPE (1), THE "INCIPIENT REBEL" (2), AND THE "PERPETUAL TEENAGER" WHO IS IDENTIFIED WITH NEITHER (1) NOR (2). TO SEE IF DIFFERENTIAL RESPONSES TO QUESTIONS ABOUT SUCH VALUES COULD BE OBTAINED FROM A JUNIOR COLLEGE POPULATION, A QUESTIONNAIRE WAS ADMINISTERED TO 500 STUDENTS ON A SUBURBAN CALIFORNIA CAMPUS. INCLUDED WERE SEVERAL ITEMS TO PROVIDE BACKGROUND INFORMATION, ITEMS TO PERMIT ANALYSIS OF VALUE COMMITMENTS, AND MEASURES OF STUDENT RESPONSE TO THE MOST COMMON TEACHING DEVICES. DATA INDICATE THAT THE FOUR SUBCULTURES DO EXIST, WITH DIFFERENTIAL CONSEQUENCES FOR ATTITUDES AND BEHAVIOR. STUDENTS CREATE AN "ENVIRONMENTAL PRESS" AND THE VALUES THEY BRING TO COLLEGE ARE CRITICAL DETERMINANTS OF EDUCATIONAL OUTCOMES. (IMPLICATIONS FOR ACADEMIC POLICY ARE DISCUSSED, AND TABULATIONS OF THE RESPONSES ARE PRESENTED.) (AL)