Table 2. Descriptive statistics and Cohen's d change scores for measures used in the present study at baseline, post-treatment (post-tx), and 12-month follow-up (12mo).

			N	M (SD)	Cohen's d
Percent Days Abstinent: COMBINE Study		Baseline:	1383	21.41 (22.50)	Baseline to Post-tx: 1.809
		Post-Tx:	1288	72.66 (33.49)
		12mo:	1099	62.63 (39.12)	Baseline to 12mo: 1.331
Percent Days Abstinent: Project MATCH		Baseline:	1725	30.90 (29.96)	Baseline to Post-tx: 1.786
		Post-Tx:	1657	83.17 (28.51)
		12mo:	1594	76.69 (33.55)	Baseline to 12mo: 1.443
Percent Heavy Drinking Days: COMBINE Study		Baseline:	1383	70.52 (26.57)	Baseline to Post-tx: 1.919
		Post-Tx:	1288	17.54 (28.69)
		12mo:	1171	26.20 (34.27)	Baseline to 12mo: 1.461
Percent Heavy Drinking Days: Project MATCH		Baseline:	1725	63.18 (31.43)	Baseline to Post-tx: 1.780
		Post-Tx:	1657	12.46 (25.09)
		12mo:	1594	16.71 (29.17)	Baseline to 12mo: 1.530
DrInC: COMBINE Study		Baseline:	1381	47.61 (20.42)	Baseline to Post-tx: 1.735
		Post-Tx:	1098	13.36 (18.85)
		12mo:	965	19.89 (21.81)	Baseline to 12mo: 1.320
	Physical Health Subscale	Baseline:	1381	9.28 (4.36)	Baseline to Post-tx: 1.607
		Post-Tx:	1098	2.61 (3.87)
		12mo:	965	3.95 (4.53)	Baseline to 12mo: 1.203
	Interpersonal Subscale	Baseline:	1381	10.06 (6.01)	Baseline to Post-tx: 1.389
		Post-Tx:	1098	2.60 (4.44)
		12mo:	965	4.06 (5.25)	Baseline to 12mo: 1.051
	Intrapersonal Subscale	Baseline:	1381	14.44 (5.66)	Baseline to Post-tx: 1.749
		Post-Tx:	1098	4.45 (5.78)
		12mo:	965	6.26 (6.66)	Baseline to 12mo: 1.343
	Impulse Subscale	Baseline:	1381	7.56 (4.25)	Baseline to Post-tx: 1.414
		Post-Tx:	1098	2.11 (3.29)
		12mo:	965	3.24 (3.83)	Baseline to 12mo: 1.058
	Social Responsibility Subscale	Baseline:	1381	6.27 (4.15)	Baseline to Post-tx: 1.260
		Post-Tx:	1098	1.60 (3.04)
		12mo:	965	2.39 (3.46)	Baseline to 12mo: 1.000
	Mild Consequences Factor	Baseline:	1381	12.15 (4.30)	Baseline to Post-tx: -1.834
		Post-Tx:	1098	3.93 (4.70)
	Moderate Consequences Factor	Baseline:	1381	25.46 (11.61)	Baseline to Post-tx: -1.707
		Post-Tx:	1098	6.63 (10.26)
	Severe Consequences Factor	Baseline:	1381	10.00 (6.91)	Baseline to Post-tx: -1.1.80
		Post-Tx:	1099	2.79 (4.92)
DrInC: Project MATCH		Baseline:	1703	52.63 (23.32)	Baseline to Post-tx: 0.680
		Post-Tx:	985	35.86 (26.78)
		12mo:	789	27.50 (24.70)	Baseline to 12mo: 1.057
	Physical Health Subscale	Baseline:	1626	9.48 (4.94)	Baseline to Post-tx: 0.666
		Post-Tx:	966	6.14 (5.13)
		12mo:	818	5.12 (4.85)	Baseline to 12mo: 0.945
	Interpersonal Subscale	Baseline:	1558	12.21 (6.98)	Baseline to Post-tx: 0.568
		Post-Tx:	942	8.17 (7.34)
		12mo:	807	6.09 (6.72)	Baseline to 12mo: 0.888
	Intrapersonal Subscale	Baseline:	1626	14.51 (6.02)	Baseline to Post-tx: 0.653
		Post-Tx:	964	10.38 (6.81)
		12mo:	819	8.31 (7.16)	Baseline to 12mo: 0.965
	Impulse Subscale	Baseline:	1572	8.69 (5.10)	Baseline to Post-tx: 0.503
		Post-Tx:	967	6.06 (5.43)
		12mo:	820	3.41 (4.21)	Baseline to 12mo: 1.097
	Social Responsibility Subscale	Baseline:	1598	7.49 (4.71)	Baseline to Post-tx: 0.591
		Post-Tx:	964	4.71 (4.69)
		12mo:	822	4.73 (4.56)	Baseline to 12mo: 0.592
	Mild Consequences Factor	Baseline:	1714	11.49 (4.53)	Baseline to Post-tx: -0.684
		Post-Tx:	986	8.27 (5.00)
	Moderate Consequences Factor	Baseline:	1716	27.04 (12.53)	Baseline to Post-tx: -0.675
		Post-Tx:	986	18.17 (14.14)
	Severe Consequences Factor	Baseline:	1717	13.30 (8.80)	Baseline to Post-tx: -0.455
		Post-Tx:	986	9.20 (9.39)