Table 2.

Pearson correlations, means, and standard deviations for study variables

								Individual		Group
	1	2	3	4	5	6	7	M	SD	M	SD
1. Grade 9 parental knowledge	–	.56	−.15	−.21	−.24	−.23	−.23	4.07	0.81	4.07	0.35
2. Grade 9 inductive reasoning	.57	–	−.12	−.12	−.1	−.13	−.12	3.22	1.18	3.20	0.48
3. Grade 9 inconsistent discipline	−.31	−.26	–	.14	.14	.15	.13	2.46	0.88	2.48	0.36
4. Grade 10 alcohol use	−.34	−.18	.21	–	.69	.41	.40	0.40	0.49	0.40	0.25
5. Grade 10 drunkenness	−.37	−.15	.21	.79	–	.46	.50	0.25	0.43	0.24	0.23
6. Grade 10 cigarette use	−.36	−.21	.29	.56	.60	–	.49	0.19	0.39	0.21	0.22
7. Grade 10 marijuana use	−.38	−.18	.26	.55	.63	.58	–	0.14	0.34	0.15	0.18

Notes: Correlations above the diagonal refer to individual level; correlations below the diagonal refer to friendship-group level. All correlations are significant at p < .001.