Vader, & Harris, 2007) or other studies of mandated samples (e.g., Barnett et al., 2006) because of the study's clinical exclusion criteria. For example, many of the students in Barnett et al. had been mandated for more serious infractions than ours (e.g., 82% were referred for acute intoxication or an alcohol-related injury compared to only 15% of our students whose incident required police or medical attention).