Multiple regression was used to investigate the unique effects of implicit cognitive processes and genetic factors as predictors of drinking. Predictor variables were entered in single step in the following order: gender, ethnicity, genetic factor, IAT score, and the genetic factor × IAT score interaction. Criterion variables were the three drinking outcomes. Analyses were conducted separately for each IAT (cope vs. enhance), genetic factor (ALDH2 vs. COMT), and drinking variable (typical drinks per week, heavy drinking episodes, and peak lifetime drinks).
