. Author manuscript; available in PMC: 2015 Sep 29.

Published in final edited form as: J Child Adolesc Subst Abuse. 2014 Aug 8;23(5):269–281. doi: 10.1080/1067828X.2013.869131

Table 3.

Product–moment correlation of parental involvement index with parental education (aggregated) and prevalence of substance use in school (aggregated)

Student-Level Variables Aggregated to the School Level	Parental Involvement Index (school-level variable)
Student-Level Variables Aggregated to the School Level	8th grade N = 371	10th grade N = 317	12th grade N = 323
Parental education	.58^***	.58^***	.54^***
Cigarette use in the past 30 days	−.20^***	−.12^*	.02
Alcohol use in the past 30 days	−.14^**	.02	.22^***
Heavy drinking	−.23^***	−.09	.16^**
Drunk in the past 30 days	−.18^***	.04	.18^***
Marijuana use in the past 30 days	−.25^***	−.18^**	.03
Marijuana use in the past 12 months	−.26^***	−.17^**	.08
Illicit drug use other than marijuana in the past 12 months	−.10	−.12^*	.03

p <.05,

^**

p <.01,

^***

p <.001