The current intervention included personalized feedback regarding their alcohol consumption, alcohol-related consequences, gender-specific normative drinking comparisons, personal risk factors (e.g., dependence symptoms, family history of alcoholism), and alcohol expectancies. The intervention also included didactic material related to alcohol (e.g., effects at different BAC levels, tolerance) and drinking moderation strategies. The feedback was presented graphically in a feedback report with the individual's information.

Alcohol consumption was assessed using the Daily Drinking Questionnaire (DDQ; Collins et al., 1985). Participants reported the number of standard drinks (e.g., 12-ounce beer, 5-ounce wine, or 1.5 ounce liquor) consumed and duration each day during a typical week in the past 3 months. Indices of weekly drinking derived from the DDQ were: total quantity, frequency of drinking days, number of heavy drinking days (days where 4/5+ drinks for women/men were consumed), proportion of heavy drinking days out of total drinking days, maximum number of drinks on the heaviest drinking day, and typical blood alcohol concentration (BAC; see Matthews & Miller, 1979).

Alcohol-related problems were measured by the Brief Young Adult Alcohol Consequences Questionnaire (B-YAACQ; Kahler et al., 2005). The B-YAACQ is a 24-item, yes-no format questionnaire assessing negative drinking-related consequences experienced during the past month. Items were summed to create an overall score (ranging from 0 to 24), with higher scores indicating greater severity.