These analyses addressed the question of the degree to which the LR scores generated by the self-report retrospective SRE measure overlapped with the alcohol challenge-based LR scores in predicting the key alcohol outcome in LR-based models, drinking quantity. This question is important because the original work carried out regarding cross-sectional and predictive validities for LR were based on the more expensive and time-consuming alcohol challenges (Schuckit, 2002; Schuckit and Gold, 1988; Trim et al., 2008). The modest cross-sectional correlations between SRE and alcohol-challenge-based LR’s raised the question of whether the relationship between the two LR scores was meaningful regarding the most important attribute of LR, the prediction of future drinking.
