Descriptive data (N = 105) overall and by impulsivity quartile are reported in Table 1. Ninety-nine participants (94.3%) completed all three test days. Among partial-completers, 3 received placebo only, 1 received 40mg% only and the other 2 received both ethanol doses but no placebo. Data from all 105 participants were included. The orders in which ethanol dose conditions occurred were compared across impulsivity quartiles and found to be highly similar, X2 (df = 14) = 7.02, p = .957. The sample was 48.6% female, mainly Caucasian (80%) and highly educated with a mean of 16.4 years of schooling (SD = 2). Sample means were approximately 6 drinking days in the past 30 days with an average of just over 2.5 drinks per drinking day. Mean total score (59.33[SD=8.83]) on the BIS-11 approximated a normative adult score (Stanford et al. 2009). More impulsive participants were significantly younger, less educated, reported more drinking days and overall drinks at baseline (Table 1).
