Table 2. Gambling outcome measures and results from random regression models analyses.

	Outcome measures, raw means (SD)			Baseline through week 6, T, p-values		Week 6 through Month 9, T, p-values
Variable	Baseline N=180	Week 6 N=172	Month 9 N=155	Time	Group × time	Time	Group × time
ASI-Gambling
Control	0.44 (0.21)	0.34 (0.19)	0.33 (0.24)	-2.49, p<.05		0.36, p=.72
Brief Advice	0.44 (0.24)	0.31 (0.31)	0.31 (0.27)		-2.40, p<.02		0.34, p=.74
MET	0.41 (0.22)	0.39 (0.25)	0.31 (0.24)		1.10, p=.27		-1.90, p=.06
MET+CBT	0.40 (0.18)	0.32 (0.19)	0.25 (0.17)		-0.08, p=.92		-2.05, p<.05
Dollars gambled	(logged)
Control	2.8 (0.6)	2.4 (1.0)	2.1 (1.4)	-2.08, p<.05		-0.28, p=.78
Brief Advice	2.5 (0.5)	1.6 (1.4)	1.5 (1.5)		-2.04, p<.05		0.43, p=.67
MET	2.5 (0.7)	2.2 (1.2)	2.0 (1.3)		0.04, p=.97		-0.02, p=.98
MET+CBT	2.6 (0.8)	2.0 (1.0)	1.8 (1.5)		-1.13, p=.19		-0.34, p=.74

Note. ASI = Addiction Severity Index. MET = Motivational Enhancement Therapy. MET + CBT = Motivational Enhancement Therapy plus Cognitive-Behavioral Therapy.