TABLE 1.

MI consistent and MI inconsistent item ratings: adherence and competence means, standard deviations, and intraclass correlation coefficient reliabilities.

	Adherence					Competence
	MIA		CAU			MIA		CAU
Items	M	SD	M	SD	ICC	M	SD	M	SD	ICC
MI Consistent (Fundamental Skills)
1. Open-ended questions	5.8	1.2	4.2	1.8	.89	5.1	.9	4.1	.9	.81
2. Reflective statements	5.8	1.5	3.4	1.9	.94	4.9	1.1	4.7	.9	.88
3. Affirmations of strengths/self-efficacy	2.9	1.6	1.8	1.3	.96	4.6	.8	4.2	.8	.84
4. Fostering a collaborative relationship	2.9	1.5	2.0	1.3	.66	4.6	.9	4.2	.9	.69
5. Motivational interviewing style	4.6	1.6	2.6	1.8	.86	4.8	1.1	4.2	1.1	.82
MI Consistent (Advanced Skills)
1. Client-centered problem discussion and feedback	4.4	1.6	3.7	1.6	.93	4.7	.8	4.2	.9	.90
2. Pros, cons, and ambivalence	3.4	2.0	1.5	1.1	.99	4.6	1.0	4.0	.8	.97
3. Heightening discrepancies	1.6	1.2	1.0	.4	.91	4.7	.9	4.5	.7	.91
4. Motivation for change	3.6	1.7	1.8	1.1	.87	4.6	.8	3.8	.9	.79
5. Change planning	3.5	1.9	1.5	1.0	.93	4.8	1.0	3.8	.8	.90
MI Inconsistent
1. Emphasis on abstinence	1.3	.8	1.4	.9	.89	4.0	.8	3.9	.8	.93
2. Powerlessness and loss of control	1.2	.7	1.1	.5	.74	4.0	.7	4.0	.8	.78
3. Unsolicited advice or direction Giving	2.3	1.9	2.6	1.9	.96	4.3	.9	4.2	1.0	.94
4. Confrontation of denial/defensiveness	1.3	4.1	1.3	.8	.78	4.7	1.0	4.3	.7	.71
5. Therapeutic authority	2.0	1.6	2.5	1.9	.97	4.3	.9	4.1	.9	.96
6. Self-help group involvement	2.5	1.2	2.4	1.1	.98	4.1	.8	4.0	.7	.96
7. Reality therapy principles	1.1	.5	1.1	.4	.85	4.2	.8	3.7	1.0	.81
8. Skills training	1.1	.4	1.0	.1	.55	4.3	1.5	4.0	.0	.57
9. Cognitions	1.2	.6	1.0	2	.86	3.9	.9	3.8	.5	.88
10. Psychodynamic interventions	1.1	.5	1.1	.5	.57	4.0	.7	4.1	.4	.67

Note: MIA = motivational interviewing assessment; CAU = counseling-as-usual; ICC = intraclass correlation coefficients based on the Shrout and Fleiss (15) two-way mixed model. Adherence and competence ratings are on a 7-point Likert scale from 1 = not at all/very poor, to 7 = extensively/excellent.