We first tested whether changes in BrAC varied as a function of ADH1B gene status. A 7 (time) × 2 (gender) × 2 (ADH1B gene status) mixed factorial analysis of variance (ANOVA) was conducted. Baseline BrAC was not included, as it was a constant. Results indicated a main effect of time (F (6, 62) = 41.91, p < .01; partial η2 = .41) and gender on BrAC (F (1, 62) = 4.46, p < .05; partial η2 = .07). Both the main effect of ADH1B gene status (F (1, 62) = 1.07, p = .31; partial η2 = .02) and the time x ADH1B interaction (F (6, 62) = 0.51, p = .80; partial η2 = .01) were not significant. Follow-up ANOVAs indicated that BrAC did not differ by ADH1B gene status at any time point (see Figure 1).
