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

Published in final edited form as: Child Dev. 2011 Dec 21;83(1):337–350. doi: 10.1111/j.1467-8624.2011.01682.x

Table 3. Predicting Relative Change in Substance Use from Peer Use Interacting with Peer Social Acceptance and Duration of Friendship.

	Teen Substance Use (Age 16)
	β entry	β final	ΔR2	Total R²
Step I.
Target Teen Substance Use (Age 15)	.70^***	.61^***		.485^***
Step II.
Gender (Male=1; Female =2)	-.06	-.03
Family Income	.09	.05
Summary Statistics for Step			.013	.498^***
Step III.
Peer Substance Use (Age 15)	.28^**	.15^*	.054^**	.552^***
Step IV.
Peer Social Acceptance (Age 15)	.07	.08
Duration of Friendship (Age 15)	-.07	-.07
Summary Statistics for Step			.005	.557^***
Step V.
Peer Social Acceptance X Peer Substance Use	.25^**	.25^**
Duration of Friendship X Peer Substance Use	.12	.12
Summary Statistics for Step			.081^***	.638^***

Note.

^***

p < .001.

^**

p < .01.

^*

p < .05.