TABLE 1.

Univariate and bivariate statistics for study variables.

Variables	M(SD)	1	2	3	4	5
(1) Age	14.44 (1.82)	–
(2) Sex	0.48 (0.50)	–	–
(3) SES	4.61 (2.05)	−0.25***	0.11**	–
(4) SS	58.66 (13.40)	0.04	0.08	0.16***	–
(5) OP	34.28 (7.09)	–0.06	–0.02	0.18***	0.56***	–
(6) DE	16.46 (10.64)	0.05	–0.02	−0.16***	−0.53***	−0.64***

N = 652; M, mean; SD, standard deviation; SS, social support; OP, optimism; DE, depression; SES, socioeconomic status. Sex was dummy coded such that boys = 0, girls = 1. **p < 0.01, ***p < 0.001.