. Author manuscript; available in PMC: 2008 Oct 1.

Published in final edited form as: Addict Behav. 2007 Jan 11;32(10):2032–2045. doi: 10.1016/j.addbeh.2007.01.001

Table 5.

Linear Regression Analyses of Predictors of Marijuana Use at Time One, Two and Three

	Predictor	B (s.e.)	Beta	t	p
Time One	Prior Use of Marijuana	.72 (.12)	1.20	5.95	<.001	R² =.40
	Minority Status	.10 (.11)	.19	.95	.34
	Prior Assault History	.17 (.11)	.31	1.59	.11
	Video Intervention	.42 (.17)	.75	2.43	.02
	Video Intervention x Prior Assault History	−.07 (.06)	−.29	−1.11	.27
	Video Invervention x Minority Status	−.05 (.06)	−.21	−.81	.42
	Video Intervention x Prior Use of Marijuana	−.23 (.07)	−.85	−3.18	.002	F (7,206)=19.39, p <.001

Time Two	Prior Use of Marijuana	.95 (.18)	1.38	5.37	<.001	R² =.41
	Minority Status	−.10 (.16)	−.16	−.61	.54
	Prior Assault History	.23 (.17)	.37	1.39	.17
	Video Intervention	.50 (.23)	.78	2.15	.03
	Video Intervention x Prior Assault History	−.12 (.10)	−.44	−1.26	.21
	Video Invervention x Minority Status	.03 (.09)	.10	.31	.76
	Video Intervention x Prior Use of Marijuana	−.36 (.10)	−1.13	−3.42	.001	F (7,122)=12.28, p <.001

Time Three	Prior Use of Marijuana	.69 (.13)	1.07	5.42	<.001	R² =.33
	Minority Status	.04 (.12)	.07	0.35	.73
	Prior Assault History	.11 (.12)	.19	0.96	.34
	Video Intervention	.34 (.19)	.60	1.89	.06
	Video Intervention x Prior Assault History	−.06 (.07)	−.21	−0.79	.43
	Video Invervention x Minority Status	−.04 (.07)	−.14	−0.53	.60
	Video Intervention x Prior Use of Marijuana	−.23 (.08)	−.76	−2.92	.004	F (7,206)=14.48, p <.001