Table 3.

Motivational Enhancement Therapy (MET) and Counseling as Usual (CAU) Adherence and Competence for Three Groups of Therapist Techniques by Therapy Condition and Program Site

	Site 1		Site 2		Site 3		Site 4		Site 5
Scale	CAU	MET	CAU	MET	CAU	MET	CAU	MET	CAU	MET	Therapy condition	Program site	Therapy × Site
MET-Consistent
Adherence
M	2.17	3.54	2.19	3.65	2.31	3.29	2.58	3.89	2.24	3.23	F(1, 408) = 269.99, p < .001	F(4, 408) = 2.89, p < .001	F(4, 408) = 2.02, p = .092
SD	0.59	0.69	0.58	0.83	0.61	0.78	0.80	0.79	0.81	0.76
n	51	39	49	39	44	37	35	40	37	47
Competence
M	3.74	4.81	3.90	4.75	3.88	4.81	4.33	5.05	4.24	4.76	F(1, 375) = 128.54, p < .001	F(4, 375) = 4.32, p < .002	F(4, 375) = 1.61, p = .1715
SD	0.72	0.56	0.87	0.72	0.71	0.59	0.73	0.80	0.75	0.53
n	44	40	39	40	42	37	34	39	26	44
MET-Inconsistent
Adherence
M	1.60	1.17	1.62	1.27	1.57	1.17	1.51	1.05	1.42	1.27	F(1, 409) = 80.27, p < .001	F(4, 409) = 1.87, p = .114	F(4, 409) = 1.99, p = .095
SD	0.52	0.20	0.56	0.34	0.45	0.20	0.47	0.11	0.48	0.35
n	50	38	49	40	44	38	36	40	37	47
Competence
M	3.98	4.24	4.38	4.21	3.90	4.67	4.43	4.45	4.66	4.51	F(1, 281) = 2.41, p = .122	F(4, 281) = 3.32, p < .011	F(4, 281) = 3.90, p < .004
SD	0.81	0.56	0.87	0.77	0.82	0.73	0.60	0.86	0.57	0.60
n	43	22	40	26	40	21	30	10	25	34
Standard Counseling
Adherence
M	1.81	1.61	1.90	1.92	2.15	1.77	1.91	1.56	2.28	1.96	F(1, 408) = 23.22, p < .001	F(4, 408) = 8.68, p < .001	F(4, 408) = 2.04, p = .087
SD	0.60	0.41	0.37	0.58	0.50	0.35	0.42	0.36	0.77	0.68
n	48	39	49	40	44	38	36	40	37	47
Competence
M	3.99	4.41	4.18	4.41	4.08	4.67	4.46	4.67	4.44	4.52	F(1, 405) = 25.25, p < .001	F(4, 405) = 4.20, p < .002	F(4, 405) = 2.142, p = .075
SD	0.63	0.59	0.67	0.59	0.61	0.70	0.55	0.77	0.62	0.50
n	49	38	49	40	44	38	35	37	38	47