The retrospective LR measure is not identical to the alcohol challenge where specific changes in alcohol response are observed at rising, peak, and falling BACs (Schuckit, 2018). However, the laboratory measure of subjective feelings gathered at about the same time correlated with the SRE at >0.30 and SRE ratings overlapped about 60% with alcohol challenge results in predicting drinking quantities (Schuckit et al., 1997, 2009). The SRE gathers data from three time frames that include the approximate first 5 times of consuming a full drink (SRE-5), the most recent 3 months of drinking (SRE-3), and the period of heaviest drinking (SRE-H).
