. Author manuscript; available in PMC: 2014 Sep 1.

Published in final edited form as: J Appl Soc Psychol. 2013 Aug 4;43(9):1784–1798. doi: 10.1111/jasp.12126

Table 1.

Bivariate correlations and descriptive statistics

Variable	(1)	(2)	(3)	(4)	(5)	(6)
(1) Adolescents’ baseline alcohol use	—	.52^**	.33^**	.09	.22^**	.09
(2) Adolescents’ alcohol use at the posttest		—	.50^**	.09	.19^**	−.05
(3) Adolescents’ alcohol use at the 18-month follow-up			—	.05	.24^**	−.05
(4) Prevention program condition				—	−.12^*	.01
(5) Parents’ expectations about their adolescents’ likelihood of drinking alcohol					—	.01
(6) Parents’ perceptions about the value of involving parents in adolescent substance use prevention						—

M	.21	.35	.60	56%^a	3.31	6.34
SD	.80	1.05	1.34	—	1.27	.69

Note: N = 321. Prevention program condition was coded as 1 and 0 for families assigned to the prevention program that did and did not systematically involve parents, respectively.

Value equals percentage of families assigned to the prevention program that did not systematically involve parents. M refers to the mean. SD refers to the standard deviation.

p ≤ .05

^**

p ≤ .01