Table 3.

Student extensiveness of core, CBT, and MI skills.

	Baseline Mean (SD)	Follow-Up Mean (SD)	F	p
Mandated Client Role-Play
Assess Primary Drug Use
Treatment Simulation	4.77 (1.50)	3.23 (2.07)	3.79	.059
Comparison Manual	4.15 (1.72)	4.00 (1.68)
Agenda Setting
Treatment Simulation	2.88 (1.53)	3.96 (1.66)	5.09	.030
Comparison Manual	3.46 (1.33)	3.00 (.913)
Explained CBT Concepts
Treatment Simulation	2.77 (1.68)	4.19 (1.50)	8.88	.007
Comparison Manual	3.23 (2.39)	2.77 (1.69)
Understood CBT Concepts
Treatment Simulation	1.19 (1.39)	2.27 (1.40)	6.22	.017
Comparison Manual	1.15 (1.34)	.923 (1.19)
Motivational Interviewing Style
Treatment Simulation	5.69 (0.55)	5.85 (0.37)	2.32	.136
Comparison Manual	5.92 (0.28)	5.77 (0.60)
Voluntary Client Role-Play
Assess Primary Drug Use
Treatment Simulation	3.80 (2.12)	2.24 (2.60)	2.78	.104
Comparison Manual	4.17 (1.99)	4.17 (1.85)
Agenda Setting
Treatment Simulation	3.16 (1.11)	3.92 (1.78)	6.07	.019
Comparison Manual	3.67 (1.23)	2.75 (1.60)
Explained CBT Concepts
Treatment Simulation	3.20 (1.71)	4.36 (1.55)	8.18	.007
Comparison Manual	2.75 (1.71)	2.33 (1.70)
Understood CBT Concepts
Treatment Simulation	1.04 (1.48)	2.44 (1.23)	12.07	.001
Comparison Manual	1.33 (1.50)	1.00 (1.13)
Motivational Interviewing Style
Treatment Simulation	5.76 (0.66)	5.64 (0.76)	1.05	.312
Comparison Manual	5.58 (0.67)	5.83 (0.66)

Notes. CBT = cognitive behavioral therapy. MI = motivational interviewing. Extensiveness ratings on a 7-point Likert scale.