. Author manuscript; available in PMC: 2014 Feb 18.

Published in final edited form as: J Consult Clin Psychol. 2012 May 7;80(4):560–573. doi: 10.1037/a0028362

Table 3.

Change in R-squared, Individual Regression Estimates (b-weights) and Standard Errors (SE) in Each of the Three Variable Blocks that Tested the Relationship between Clinician Characteristics and the Magnitude of change in MI Skill Ratings after Workshop Training.

Clinician Characteristics	MI Skill Ratings
	Spirit	Pct CR	Ref/Question	MINA^a
*Step 1: ΔR²*	*0.17^**	*<.01*	*<.01*	*0.14^*

Pre-Workshop Skill	0.47(0.14)^***	0.05(0.11)	0.09(0.18)	0.26(0.09)^**
*Step 2: ΔR²*	*0.07*	*0.07*	*0.21^*	*0.01*
Pre-Workshop Skill	0.38(0.14)^***	0.06(0.11)	−0.04(0.17)	0.26(0.09)^**
Years in Field^a	1.05 (0.47)	2.71 (9.4)	0.34(0.12)^**	−0.24(0.24)
Graduate Degree	−0.20(0.30)	−12.1(6.2)	0.17(0.08)^*	0.15(0.16)
*Step 3: ΔR²*	*0.09^	*0.04*	*0.03*	*0.00*
Pre-Workshop Skill	0.28(0.14)^***	0.05(0.11)	−0.04(0.17)	0.26(0.10)^**
Years in Field^a	1.17(0.45)^*	4.4 (9.50)	0.36(0.12)	−0.24(0.24)
Graduate Degree	−0.63 (0.33)	−9.8 (7.30)	0.13(0.10)	0.11 (0.19)
Vocabulary	0.04 (0.02)^*	−0.16(0.33)	0.00(0.0004)	0.00 (0.01)
AQ	0.01(0.01)	0.35(0.24)	0.00(0.003)	0.00 (0.01)

*Multiple R²*	*0.34*	*0.11*	*0.24*	*0.16*

Note:

log transformed for analyses;

^***

p < .001;

^**

p < .01;

p < .05.

AQ= Abstraction Quotient.

Step 1 entered pre-workshop skill ratings, Step 2 entered years in the field and degree status (MA/Ph.D. vs. other), Step 3 entered vocabulary and AQ performances.

Multiple R² is the variance accounted for when all predictor variables have been entered (Step 3).