Table 1.

Pre-Post Means (SD) and Effect Sizes for Drinking Outcomes

Factor	Baseline	1-month follow-up	6-month follow-up	Within-groups effect size (d) (1-month)	Within-groups effect size (d) (6-month)
Typical Drinks Per Week
SFAS	15.08 (9.12)	9.32 (6.75)	10.92 (9.27)	.73	.45
Relaxation	18.92 (12.40)	11.55 (9.64)	14.13 (12.97)	.67	.38
Heavy Drinking
SFAS	5.45 (3.62)	3.03 (3.04)	2.76 (2.94)	.73	.82
Relaxation	6.58 (4.63)	4.32 (4.05)	4.38 (4.35)	.52	.49
Alcohol-related Consequences
SFAS	12.37 (7.77)	6.09 (5.11)	7.03 (7.25)	.98	.71
Relaxation	14.61 (9.02)	14.07 (10.87)	12.00 (11.41)	.05	.26

Note: Sample sizes were as follows for SFAS and Relaxation respectively: Drinks per week: ns = 37, 32; Heavy Drinking: ns = 37, 33; Alcohol consequences: ns = 35, 28. Analyses of alcohol consequences included a smaller sample size due to the fact that several participants completed a brief follow-up interview over the phone that did not include the measure of alcohol problems. All values reflect past-month estimates (typical drinks per week, number of heavy drinking episodes, and number of alcohol-related consequences).