Table 1.

Drug use for all subjects, and high and low WM capacity groups.

Variable	All	Low WM	High WM	t	p
N	17	7	7	-	-
Age	25.94 (3.45)	25.57 (3.31)	27.28 (3.73)	1.3	.23
Age of First Drink	14.76 (4.19)	11.86 (4.85)	16.00 (1.41)	2.2	.05
Drinking days	15.17 (7.84)	15.29 (10.24)	15.14 (6.79)	.03	.97
Drinks per drinking day	4.50 (2.83)	5.59 (3.82)	4.22 (1.75)	.86	.41
Heavy drinking episodes	7.00 (9.06)	8.14 (10.56)	7.57 (9.81)	.10	.92
Peak standard drinks	8.41 (3.99)	10.14 (4.88)	7.57 (3.05)	1.18	.26
AUDIT score	12.76 (6.89)	14.43 (8.36)	11.57 (5.86)	.74	.47
Cigarette smoking days	7.88 (12.87)	10.86 (14.15)	8.29 (14.16)	.34	.74
Marijuana use days	6.70 (12.20)	.29 (.49)	12.1 (15.19)	2.06	.06
Working memory span	46.07 (19.13)	31.29 (8.79)	60.86 (14.33)	4.65	<.01

Notes. AUDIT – Alcohol Use Disorder Identification Test. *Working memory span was measured using an automated operation span task, provided to us by Dr. Randall Engle.