Kristen P Lindgren1, Clayton Neighbors2, Erin Westgate3, Elske Salemink4. 1. Center for the Study of Health and Risk Behaviors, Department of Psychiatry and Behavioral Sciences, School of Medicine, University of Washington, Seattle, Washington. 2. Department of Psychology, University of Houston, Houston, Texas. 3. Department of Psychology, University of Virginia, Charlottesville, Virginia. 4. Department of Psychology, University of Amsterdam, Amsterdam, The Netherlands.
Abstract
OBJECTIVE: We investigated trait and alcohol-specific self-control as unique predictors and moderators of the relation between implicit drinking identity associations and drinking. METHOD: Three hundred undergraduates completed a drinking identity Implicit Association Test (IAT), trait and alcohol self-control questionnaires, and alcohol consumption, problems, and cravings inventories. RESULTS: Regression analyses tested for unique effects of predictors and for Self-Control × IAT interactions. Each predictor accounted for unique variance in consumption, but there was no evidence of moderation effects. Both types of self-control, but not IAT scores, accounted for unique variance in problems. A Trait Self-Control × Implicit Drinking interaction accounted for excess zeros in problems, with a greater likelihood of not having alcohol problems among individuals with low implicit identity who had higher versus lower trait self-control. Each predictor accounted for unique variance in cravings. A Trait Self-Control × IAT interaction was also found, indicating that implicit drinking identity was a stronger predictor of cravings among those with lower versus higher trait self-control. CONCLUSIONS: Results are partially consistent with previous research: Both types of self-control and drinking identity associations predicted unique variance in drinking, and moderation effects were observed for trait self-control and drinking identity associations and two of the three drinking variables. Findings suggest that trait and alcohol-specific self-control and implicit drinking identity could be useful intervention targets.
OBJECTIVE: We investigated trait and alcohol-specific self-control as unique predictors and moderators of the relation between implicit drinking identity associations and drinking. METHOD: Three hundred undergraduates completed a drinking identity Implicit Association Test (IAT), trait and alcohol self-control questionnaires, and alcohol consumption, problems, and cravings inventories. RESULTS: Regression analyses tested for unique effects of predictors and for Self-Control × IAT interactions. Each predictor accounted for unique variance in consumption, but there was no evidence of moderation effects. Both types of self-control, but not IAT scores, accounted for unique variance in problems. A Trait Self-Control × Implicit Drinking interaction accounted for excess zeros in problems, with a greater likelihood of not having alcohol problems among individuals with low implicit identity who had higher versus lower trait self-control. Each predictor accounted for unique variance in cravings. A Trait Self-Control × IAT interaction was also found, indicating that implicit drinking identity was a stronger predictor of cravings among those with lower versus higher trait self-control. CONCLUSIONS: Results are partially consistent with previous research: Both types of self-control and drinking identity associations predicted unique variance in drinking, and moderation effects were observed for trait self-control and drinking identity associations and two of the three drinking variables. Findings suggest that trait and alcohol-specific self-control and implicit drinking identity could be useful intervention targets.
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