risk factors would be at increased risk for heavier drinking and AUDs in adulthood (Schuckit, 2009); higher levels of baseline typical quantity of alcohol use would facilitate and amplify the impact of other risk factors on AUDs by creating an environment in which those predictors would be likely to have a greater impact on problematic drinking; and an earlier onset of drinking would amplify the impact of additional risk factors through the lack of experience and less intense executive control likely to be observed in earlier adolescence (Brown et al., 2008).