Regardless of the findings in our study evidencing the important role of FH and the robustness of density over dichotomous FH measures in predicting alcohol outcomes, it is important to consider alternative explanations: 1) An individual’s own alcohol use may affect the alcohol outcomes studied here, beyond the influence of one’s FH. Although studies (e.g., Pfefferbaum et al., 1991) have shown that effect of FH on neurocognitive alcohol outcomes like P3 amplitude is above and beyond an individual’s drinking history and that the effect of FH does not depend on an individual’s drinking (e.g., Dager et al., 2015), it is nevertheless important for future studies to account for individuals’ current alcohol use. 2) Social determinants like low socio-economic-status (SES) and parental education/income may affect the outcomes examined here, perhaps beyond the influence of FH. Indeed, studies show that although individuals from higher and lower SES may not differ in their alcohol consumption, the latter group is more affected by negative alcohol-related consequences further complicated by race/ethnicity and gender (Collins, 2016). Future studies examining effects of FH should also consider the
