Table 2.

MISC Observational Coding Data – Treatment Delivery and Enactment

MISC Variable	Reminder Calls	Motivational Interviewing	Benchmark Level for MI
Treatment Delivery: Counselor Behaviors
Total % MI-consistent statements	26%	70%	50%†–95%*,**
% reflection	0%	23%	40%†–56%*
% open-ended questions	14%	49%	18%†–23%*
% direct instruction	13%	3%	4%*
Rating of counselor’s MI skills	M = 2.56 (SD = 0.86)	M = 5.77 (SD = 0.47)	5.07*
Treatment Enactment: Participant Behaviors
% of time patient spoke	25%	59%	62%†,**
# of change statements/minute	M = 0.21 (SD = 0.19)	M = 0.29 (SD = 0.26)	—
Rating of patient engagement	M = 2.60 (SD = 0.35)	M = 4.60 (SD = 0.92)	5.78*

Note. Benchmark levels for the MI condition are drawn from:

^†Baer, et al. (2004) study of MI training results for mental health professionals, using post-training means for the counselors who were considered to be ‘MI-proficient’;

^*Moyers, et al. (2005) study showing linkages between counselors’ level of proficiency on the global rating scales and clients’ outcomes in MI;

^**Miller, et al. (2004) randomized trial of methods for learning MI, using average post-training means across the 4 training methods.

For the number of client change statements, we averaged by minutes of conversation to account for the fact that MI calls were longer and therefore clients had more opportunity to make change statements. The average number of total change statements in 15-minute MI calls was M = 4.55, which is similar to the benchmark level of 5 per session reported post-training in another MI training study by Schoener, Madeja, Henderson, Ondersma, and Janisse (2006).