The attendance patterns of the 5,697 nongraduating students enrolled at the Grand Valley State Colleges over the period from fall 1975 to fall 1977 is examined. The analysis shows that: of the 256 possible combinations of attendance patterns over the eight terms from winter 1976 to fall 1977, nongraduating students were in 187 of these patterns; only 17.8 percent of the 5,697 nongraduates who were enrolled in fall 1975 had not returned by fall 1977; 11.4 percent of these original students followed the academic pattern of attending fall, winter, and spring while staying out during the summer; 15.8 percent of the students who were not in attendance for two consecutive terms did re-enroll for at least one term by fall 1977; and of the 1,463 nongraduates enrolled in fall 1975, who did not re-enroll in winter 1976, 30.6 percent eventually enrolled for at least one term between spring 1976 and fall 1977. (SPG)