The present study hypothesized that DRD2/ANKK1 TaqI A (rs1800497) genotype would moderate the relationship between alexithymia and an alcohol purchase task (APT) among male college binge drinkers.     ///    "Five Bonferroni-corrected moderation models were tested using APT indices as the criteria, alexithymia as the predictor, and DRD2/ANKK1 TaqI A1 allele presence as the moderator. "    ///    DRD2/ANKK1 TaqI A genotype moderates the relationship between alexithymia and the relative value of alcohol among male college binge drinkers.. 