This study assessed the influence of class size on the change in student computer attitudes after the completion of a 16-week computer literacy course. The sample consisted of 317 students enrolled in 15 sections of computer literacy courses at a university in the fall of 1993. Class size varied from 16 to 178. The dependent variable was the posttest score on the Computer Attitude Scale (CAS). The pretest score on the CAS was used as a covariate. There was a statistically significant difference between class size and student attitudes on the computer usefulness subscale of the CAS. Students in smaller classes perceived computers to be more useful after completion of a computer literacy course than students in larger classes. Four tables provide survey results. (Contains 13 references.) (Author/AEF)