. Author manuscript; available in PMC: 2009 Dec 1.

Published in final edited form as: Psychol Addict Behav. 2008 Dec;22(4):459–471. doi: 10.1037/a0012965

Table 2.

Tests From Regression Models for Interaction of Self Control (SC) and Risk Factors, for 6^th Grade - 9^th Grade Data, Substance Use Score as Criterion

Model	6th grade	7th grade	8th grade	9th grade
Good SC x family events	-1.82⁺	-3.92^****	-3.20^***	-1.05
Good SC x adolescent events	-3.95^****	-1.67	-4.61^***	-3.13^**
Good SC x peer substance use	-8.45^****	-6.09^****	-3.26^***	-3.83^****

Note: Value is t for cross product term (good self-control x risk factor) in model including two main-effect terms and demographics (gender, ethnicity, family structure, and parental education).

N for analyses is 1,400 - 1,500 approximately.

⁺

p < .10

p < .05

^**

p < .01

^***

p < .001

^****

p < .0001