. Author manuscript; available in PMC: 2013 Jul 1.

Published in final edited form as: Addict Behav. 2012 Mar 8;37(7):797–802. doi: 10.1016/j.addbeh.2012.02.020

Table 4.

Linear Regression: Goal Self-Efficacy Appraisals as Predictors of Use Frequency Among Marijuana Smokers

Variable	B	S.E.	β	t	Sig	F for Δ R²	Δ R²	Sig F Δ
Step 1						4.00	.05	.05*
Gender	.23	.12	.22	2.00	.05*
Step 2						.49	.03	.78
Gender	.24	.12	.22	1.99	.05*
Achieve	.00	.02	−.01	−.13	.90
Social	.02	.02	.11	.93	.35
Romantic	.00	.01	.01	.06	.95
Groups	−.02	.01	−.14	−1.25	.22
Fitness	−.01	.02	−.07	−.60	.55
Step 3						5.38	.06	.02*
Gender	.27	.12	.26	2.36	.02*
Achieve	.00	.02	.00	.01	.99
Social	.03	.02	.19	1.55	.13
Romantic	.01	.01	.09	.72	.48
Groups	−.01	.01	−.12	−1.04	.30
Fitness	.00	.02	−.01	−.05	.96
Idiographic	−.12	.05	−.29	−2.32	.02*

Notes: B = unstandardized coefficient; S.E. = standard error; β = standardized coefficient