used α = .15 as the Type I error rate due to a small sample size. In contrast, in a large sample of volunteer students, Larimer et al. did not find that severity of baseline drinking moderated the efficacy of a mailed PFI at the 1-year follow-up. Interestingly, Larimer et al. reported that abstainers benefited more from the feedback, compared to drinkers. A recent meta-analysis of 62 studies (Carey, Scott-Sheldon, et al., 2007) reported that individual-level interventions were less successful when heavy drinkers or other at-risk groups (e.g., Greeks, athletes, first-year students) were targeted.
