The 12-item SRE (Schuckit et al., 1997) was used to assess level of response to alcohol. The SRE asks respondents to estimate the number of standard drinks required to experience four different effects, including: (1) to “begin to feel any different” (any effect), (2) to “feel a bit dizzy or begin to slur your speech”, (3) to “begin stumbling or walking in an uncoordinated manner”, and (4) to “pass out, or fall asleep when you did not want to.” Respondents provide drink estimates for these four effects according to three separate time frames: their first five lifetime drinking episodes (SRE-First5), during the period of their heaviest drinking (SRE-Heavy), and over the past three consecutive months in which they drank (SRE-3month). The SRE overall score (SRE-Total) is obtained by summing the number of drinks estimated for each time frame divided by the total number of endorsed (non-missing) items, and higher overall scores indicate lower sensitivity to alcohol.
