up by the challenge, such as personality characteristics, emotional reactivity, or accuracy of recollection, and these might themselves reflect a higher risk for heavier drinking. Third, in this study the LR from the SRE is meant to capture LR very early in the drinking career and was measured at a time ∼ one year closer to follow-up, and the combination of testing very early LR and the shorter delay between measure and follow-up could have contributed to a higher correlation with outcome. Further study regarding these and other possible explanations for the relative performance of the two LR measures is required before conclusions can be drawn.
