Table 2.

Correlations among all study variables

	1.	2.	3.	4.	5.	6.	7.	8.	9.	10.	11.	12.	13.	14.	15.	16.	17.	18.	19.	20.	21.	22.
1. Female	–
2. Minority	.00	–
3. Alcohol 10	−.07	−.11	–
4. Alcohol 11	.00	.01	.01	–
5. Alcohol 12	−.02	.02	.15	−.08	–
6. Smoking 10	.02	−.07	.28*	−.13	.09	–
7. Smoking 11	.00	.18*	.15*	.03	.06	.38*	–
8. Smoking 12	−.02	−.07	.08	.03	.32*	.00	−.05	–
9. Had sex 10	.07	.18*	.27*	−.07	.13	.34*	.61*	−.03	–
10. Had sex 11	−.01	−.12*	.26*	−.03	.00	.73*	.40*	−.07	.31*	–
11. Had sex 12	.01	.03	−.08	.03	.15*	−.03	.12	.31*	.13	.04	–
12. Other-sex friends 10	−.08	.09	.10	.11	.04	.05	.18*	−.07	.08	.05	−.09	–
13. Other-sex friends 11	−.13	.03	.08	.01	.00	−.04	−.09	−.10	−.06	−.03	.05	−.07	–
14. Other-sex friends 12	−.08	.10	−.03	−.01	−.07	.02	.07	−.21*	.12	.02	−.08	.29*	.04	–
15. Friends’ alcohol 10	−.10	−.13*	.39*	−.05	.02	.27*	.18*	−.01	.16*	.23*	−.07	.05	.07	.10	–
16. Friends’ alcohol 11	−.09	−.07	−.03	.28*	−.09	−.09	−.09	.00	−.06	.00	−.09	.07	−.07	−.01	−.04	–
17. Friends’ alcohol 12	−.08	−.16*	.43*	−.10	.06	.21*	.12	.01	.18*	.26*	−.05	.02	.09	.05	.45*	−.09	–
18. Friends’ smoking 10	−.03	.09	.25*	−.05	.05	.25*	.33*	−.06	.22*	.25*	−.11	.07	.04	.11	.54*	−.12	.25*	–
19. Friends’ smoking 11	−.03	−.10	.11	.01	−.03	.05	−.04	−.07	.00	−.02	−.06	−.06	.11	−.05	.00	−.04	−.07	.05	–
20. Friends’ smoking 12	.09	−.07	.17*	−.04	.00	.16*	.17*	.07	.16*	.34*	.04	.10	−.07	.03	.31*	−.09	.37*	.30*	.07	–
21. Friends had sex 10	.03	.26*	.20*	−.01	−.01	.22*	.32*	.08	.26*	.13	.01	.09	−.09	−.17*	.36*	−.07	−.06	.45*	.04	.15	–
22. Friends had sex 11	.01	.08	.10	−.07	.05	−.03	−.10	.04	−.02	−.08	.06	−.08	.07	−.17	−.01	.05	−.09	−.05	.30*	−.03	−.04	–
23. Friends had sex 12	−.15*	.25*	.20*	−.05	−.03	.18*	.32*	−.03	.30*	.22*	.00	.03	.09	.07	.26*	−.04	.27*	.31*	−.01	.28*	.25*	−.12

* p < .05 or lower. 10–12 = Grades 10–12. N ranges from 126 to 279