Consistent with our prior studies of LR and our predictions of differential results for frequency versus quantity, few significant effects were seen for drinking frequencies. The effect of LR is primarily on how much one drinks per occasion, rather than on whether a person decides to drink at a specific time (Chung and Martin, 2009; Quinn and Fromme, 2011; Schuckit et al., 2011b, 2012b, 2014; Scott, 2012).