Table 1.

Items on the Contingency Management Competence Scale and Intraclass correlation coefficients (ICC; n = 99 sessions)

Item	ICC
1. To what extent did the therapist discuss outcomes of urine and breath sample monitoring?	0.78
2. To what extent did the therapist state how many draws were earned at this session?	0.90
3. To what extent did the therapist state how many draws would be earned at the next session if the client were abstinent?	0.90
4. To what extent did the therapist assess the client's desire for items in the prize cabinet?	0.94
5. To what extent did the therapist discuss the client's self-report of substance use?	0.76
6. If the client self-reported substance use, to what extent did the therapist relate self-reports of substance use to objective indicators of substance use?	0.75
7. If the client self-reported substance use, to what extent did the therapist relate self-report of substance use to consequences of positive samples?	0.77
8. To what extent did the therapist compliment/praise client's efforts toward abstinence?	0.85
9. To what extent did the therapist communicate confidence that the client's efforts will yield success in the future?	0.80
10. General skillfulness (expertise, competence and commitment, engages client in discussion, interventions made at appropriate times—not missed or made too early).	0.77
11. Maintaining session structure (maintains session focus, sets appropriate tone and structure, appropriate level of therapist activity/directiveness, duration).	0.67
12. Empathy (conveys warmth and sensitivity, demonstrates genuine concern and a non-judgmental stance, understands/expresses clients' feelings and concerns).	0.80