The study provides some empirical evidence of the validity of the SIP-AD as a useful, sufficiently accurate, and consistent measure of the negative consequences associated with substance use. As expected, the regression analysis showed that using cocaine and marijuana, along with binge drinking, predicted scores on the SIP-AD, even when controlling for demographic characteristics such as age, gender, race, income, class rank, and residence. The prevalence of alcohol and marijuana use in the sample was lower than comparable national rates; however, the percentage of annual cocaine use was identical to national rates. Among the subsample of substance-using students, having four to six drinks was apparently the norm. The increased frequency of alcohol consumption resulted in increased problems linked to such consumption. The 421 college students were randomly sampled from the student body using a cluster design. The SIP-AD, which was administered to the student sample, is a shortened version of the Inventory of Drug use Consequences (InDUC), which is a modified form of Miller, Tonigan, and Longabaugh's (1995) Drinker Inventory of Consequences (DrInC). The SIP-AD includes 12 of the 15 items on a shortened version of the DrInC. The SIP-AD retained items from each of the original five subscales, with at least two items representing each of the subscales. In a previous assessment, Blanchard et al. demonstrated that the SIP-AD was internally consistent and valid among a sample of 252 participants who were in treatment for substance use problems. 7 tables and 25 references