This study is concerned with educational growth during the first two years of college, as measured by the American College Testing Program. Students from five colleges were pretested during the senior year of high school and post-tested after the sophomore year of college. Factor analysis and t-tests showed general gains in the four subtests: mathematics, English, natural sciences, and social studies. Sex differences in gain patterns occurred. Institutional differences influenced growth in specific subjects. The educational growth of a student was unrelated to his major. Both initially high and low scoring students regressed the the mean on the re-test. A study of the students in one college on the following aspects is also reported: (1) the effect of taking a specific college course, (2) the influence of a student's major, (3) the gain at the end of the freshman year, and (4) the results of the Sequential Tests of Educational Progress and the School and College Ability Tests. The total study is considered preliminary due to problems such as regression, ceiling, content, and reliability effects. (NG)