Alcohol and marijuana use, consequences, and perceived descriptive norms: Differences between two- and four-year college students.

Objective: Among two-year college students, alcohol and marijuana use, related consequences, and risk factors for use are not well understood. We examined differences between two- and four-year students in alcohol and marijuana use, consequences, and perceived descriptive norms, and explored whether two-year status moderated associations between norms and use. Participants: Data were drawn from a cross-sectional subsample of two- and four-year students aged 18-23 ( n  = 517) participating in a longitudinal study on alcohol use. Results: Four-year students reported greater alcohol use and consequences than two-year students; two-year students reported greater marijuana use than four-year students. Perceived alcohol and marijuana norms were positively related with use; two-year status did not moderate these associations. Conclusions: Perceived alcohol and marijuana norms function similarly for two- and four-year students in terms of associations to actual use. Adapting normative interventions for two-year students may be an effective strategy for reducing high-risk use among this underserved population.