Participants were randomly assigned to an alcohol (n = 32) or placebo group (n = 32). The alcohol and placebo participants were matched in terms of age. Mean age of the alcohol group was 20.39 years (SD = 2.01) and mean age of the placebo group was 20.63 years (SD = 1.99). There were no significant group differences on self-reported habitual drinking patterns [total score of the quantity–frequency–variability (QFV) index of drinking patterns] and age of onset of alcohol use [t’s (59) < −1.27]. Furthermore, no significant group differences were found in self-reported measures of impulsiveness (BIS-11), sensation seeking (BSSS), and reward/punishment sensitivity (BIS/BAS subscales) [t’s (59) < 1.12].
