Table A3.

Intent-to-treat (ITT) analysis-restricted sample (N = 88)

Repeated measures model effects	Total AUDIT	Drinks per drinking day	Drinking days in 14 days	Heavy episodic drinking
Intervention main effect	F = 0.70 (p = .4060)	F = 2.21 (p = .1412)	F = 0.98 (p = .3258)	F = 0.12 (p = .7259)
Time main effect	F = 4.72 (p = .0113)	F = 7.35 (p = .0011)	F = 4.75 (p = .0110)	F = 13.58 (p < .0001)
Intervention x Time interaction	F = 0.58 (p = .5622)	F = 0.53 (p = .5890)	F = 0.90 (p = .4116)	F = 0.47 (p = .6270)
Model-based least squares means	Baseline	2 Weeks FU	8 Weeks FU	Average Row
Total AUDIT
Intervention	16.33	14.45	14.18	14.99
Control	14.79	13.88	12.44	13.71
Average column	15.56	14.16	13.31
Drinks per drinking day
Intervention	2.06	1.42	1.38	1.62
Control	2.86	2.51	2.12	2.50
Average column	2.46	1.97	1.75
Drinking days in 14 days
Intervention	5.05	4.24	3.82	4.37
Control	5.73	4.70	5.24	5.23
Average column	5.39	4.47	4.53
Heavy episodic drinking
Intervention	2.04	1.91	1.53	1.82
Control	2.23	1.97	1.49	1.90
Average column	2.13	1.94	1.51
Pairwise contrasts for time effect	Total AUDIT	Drinks per drinking day	Drinking days in 14 days	Heavy episodic drinking
Baseline vs. 2 Weeks FU	t = 1.95 (p = .0545)	t = 2.38 (p = .0197)	t = 3.00 (p = .0035)	t = 1.74 (p = .0859)
Baseline vs. 8 Weeks FU	t = 3.06 (p = .0029)	t = 3.83 (p = .0002)	t = 2.16 (p = .0335)	t = 5.04 (p < .0001)
2 Weeks FU vs. 8 Weeks FU	t = 1.50 (p = .1377)	t = 1.23 (p = .2205)	t = −0.17 (p = .8649)	t = 3.89 (p = .0002)

Degrees of freedom for F-tests are df = 1,86 for the intervention-received main effect, and df = 2,86 for both the time main and intervention-received x time interaction effects. Degrees of freedom for all pairwise contrast t-tests are df = 86.