SRE values have retest reliabilities and predictive validities regarding drinking quantities and alcohol-related problems of 0.70 or higher (Kalu et al., 2008; Ray et al., 2011; Schuckit et al, 1997), and lower or higher designations of LR remain relatively consistent as drinkers age (Schuckit and Smith, 2012). Because a low LR is hypothesized to impact on how much a person drinks per occasion and does not relate closely to impulsivity, LR does not correlate highly with drinking frequency (Schuckit, 2018). Examples of significant positive correlations between SRE scores and future heavier alcohol intake and alcohol problems include data from the San Diego Prospective Study (SDPS), the Collaborative Study of the Genetics of Alcoholism (COGA), the U.K.-based Avon Longitudinal Study of Parents and Children (ALSPAC), and others (e.g.,Chung and Martin, 2009; Goncalvez et al., 2017a, 2017b; Schuckit et al., 2007a; 2008; Schuckit and Smith, 1996). SRE-based LR values are higher in men than women (i.e., men have a lower LR per drink) (Eng et al., 2005; Schuckit et al., 2000; 2011; 2012b, 2016) and European Americans (EAs) compared to African Americans
