Cunningham and colleagues compared an online SBI (Check Your Drinking) to Check Your Drinking plus an extended internet intervention called the Alcohol Help Center (AHC), which provides cognitive-behavioral and motivational components in a randomized clinical trial with 170 problem drinkers (Cunningham, 2012). Baseline drinking in this predominantly male sample was high (AUDIT mean score 22.1). Seventy-two percent of the sample accessed their assigned condition and 6-month follow-up self-reports were obtained from 90% of the randomized sample. Multivariate analysis of variance indicated greater reduction in drinking outcomes for those assigned to SBI+AHC relative to SBI alone (10.3 versus 11.5 mean highest drinks per occasion at 6 month follow-up, p=.02).
