Table 1.

Sample characteristics for participants included in and excluded from analyses

	Subjects included in analysis		Excluded subjects
Variable	M (SEM)	Range	M (SEM)	Range
n	144	–	20	–
ICS	47.28(1.65)	4–96	48.6 (3.97)	17–83
Yrs. drink	14.17(0.83)	1–39	15.3 (2.62)	2–39
AUDIT	19.61 (0.65)	7–38	19.1 (1.61)	10–36
ADS	13.76(0.67)	2–43	12.65(1.62)	4–28
Age	32.64 (0.8)	21–56	35.35 (2.8)	21–55
Prop. AA	0.79	–	0.9	–
Prop. AD	0.61	–	0.65	–
Prop. no AUD	0.13	–	0.05	–
Go pct. correct	0.94 (0.01)	0.71–1	0.65 (0.03)	0.38–0.91
NoGo pct. correct	0.41 (0.01)	0.075–0.825	0.4 (0.06)	0.075–0.925
d′	1.44(0.06)	0.08–4.33	0.13 (0.09)	-0.46–1.29
GoRT	334.57 (4.9)	135.11–457.89	276.36(21.53)	114.24–480.47
NoGo incorrect RT	316.4(4.84)	110.74–446.65	248.75 (20.94)	106.64–451.46

Notes: ICS = Impaired Control Scale; yrs. drink = self-reported years of regular drinking; AUDIT = Alcohol Use Disorders Identification Test; ADS = Alcohol Dependence Scale; prop. AA = proportion of participants meeting criteria for Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV), alcohol abuse; prop. AD = proportion of participants meeting criteria for DSM-IV alcohol dependence; prop. no AUD = proportion of participants not meeting criteria for an alcohol use disorder according to DSM-IV criteria; Go pct. correct = percentage of correct responses Go trials; NoGo pct. correct = percentage of correct withholding of responses during NoGo trials; d′ = response sensitivity; Go RT = mean response time for correct Go trials; NoGo incorrect RT = mean response time for incorrect NoGo trials