. Author manuscript; available in PMC: 2017 Mar 1.

Published in final edited form as: J Consult Clin Psychol. 2016 Jan 4;84(3):248–258. doi: 10.1037/ccp0000065

Table 4.

Multiple regression examining the prediction of Percent Days Abstinent (criterion) by the BMI+SC X F1 and BMI+SC X F2 interactions after controlling for baseline Percent Days Abstinent and race/ethnicity (n = 73).

	Variable	β	t	R²
Step One	Baseline PDA	.23^*	2.17^*	.06^*
	F2	−.17	−1.51	.03
	Race/Ethnicity	−.29^*	−2.46^*	.08^*
Step Two	Baseline PDA	.24^*	2.20^*	.06^*
	F2	−.19	−1.62	.04
	Race/Ethnicity	−.27^*	−2.25^*	.07^*
	BMI+SC	−.10	−.88	.01
Step Two	Baseline PDA	.24^*	2.20^*	.06^*
	F2	−.24	−1.68	.04
	Race/Ethnicity	−.27^*	−2.28^*	.07^*
	BMI+SC	−.09	− .83	.01
	F1	.08	.61	.01
Step Four	Baseline PDA	.23^*	2.21^*	.06^*
	F2	−.35	−1.94	.05
	Race/Ethnicity	−.24	−1.97	.05
	BMI+SC	.06	.17	<.01
	F1	.34	1.85	.05
	BMI+SC X F1	−.67^*	−2.02^*	.05^*
	BMI+SC X F2	.44	.94	.01
Model R² = .05

Note. Baseline PDA = percent days abstinent during the three months prior to baseline interview. Race/Ethnicity = categorical Black/White/Other variable. BMI+SC = Brief Motivational Intervention plus Standard Care vs. SC condition. F1 = Psychopathy Checklist-Revised Factor One score. F2 = Psychopathy Checklist-Revised Factor Two score. BMI+SC X F1 and BMI+SC X F2 are centered interaction terms.

p < .05.