The laboratory procedures were identical to those described in Study One: participants were administered alcohol (0.8 g/kg) or placebo (1% alcohol per volume as taste mask) in random order in two double-blinded individual laboratory sessions, and the BAES was given at pre-drink baseline and at four post-drink intervals (i.e., 30, 60, 120, and 180 minutes after beverage onset) throughout the BrAC. After completion of the laboratory portion, these participants subsequently completed eight follow up assessments of drinking and related behaviors on a quarterly basis over a two-year interval. The retention rate for follow up was 99%. Details on procedures are in King et al. (2011a).
