Analysis of the transcripts of 200 full-time and 200 part-time beginning traditional credit students randomly sampled from the population of students entering each fall from 1967 to 1975 at William Rainey Harper College indicated that: (1) overall student grade point average rose in direct relationship to changes in grading policy; (2) the grade point average of part-time students was consistently higher than that of full-time students; (3) the average age of entering full-time students was 18.5 to 19.5, while the average age of entering part-time students was 26 to 27; (4) because of the growing number of part-time students and the declining number of full-time students, the average age of the traditional credit student body was increasing; (5) students were entering the college with increasing high school class ranks; (6) the average full-time student starting in 1972 had accumulated 41 credit hours by 1976 and had attended four semesters, while the average part-time student starting in 1972 had accumulated 14 credit hours and had attended three semesters; (7) 37.5% of the full-time students and 5.5% of the part-time students entering in 1972 had received degrees by 1976; and (8) the growing enrollment in the continuing education department (CED) was beginning to impact on traditional credit enrollment--7.5% of the part-time students and 1.5% of the full-time students enrolling in 1975 had taken a CED course before beginning traditional credit enrollment. (DC)