The LR value used here was obtained during a traditional alcohol challenge at T1 (~age 20; Schuckit & Gold, 1988; Schuckit & Smith, 2000). Changes in self-report of subjective feelings of intoxication, body sway/standing steadiness, and cortisol levels from before the drink to 60 minutes after consuming the alcohol (the usual time of peak blood alcohol concentration) were converted to z-scores relative to other individuals tested in the laboratory. The overall LR z-score was log-transformed for these analyses due to the right skewness of this variable.
