The purpose of this study was to describe college students' AIDS communication and explore the relationships between AIDS communication, involvement, and sexual behavior. A non-random sample of 334 college students was surveyed. AIDS message discrimination and multiple indicators of involvement were tested for associations with sexual behavior change. The cognitive, behavioral and communication involvement dimensions were moderately correlated with sexual behavior in both single and multiple sex partner subsamples. Affective involvement did not emerge as a significant predictor of sexual behavior change. Prevalence message discrimination was also moderately associated with sexual behavior change in the single sex partner group; personal consequences message discrimination was correlated with sexual behavior change in the multiple partner group. The findings generally support the elaboration likelihood model and suggest that achieving heightened issue involvement through AIDS communication is an important intermediate step toward modifying sexual behavior. (Four tables of data are included; 36 references are attached.) (Author)