TABLE 1. Means, Standard Deviations, and Correlations for the Main Variables in the Analysis.

				Correlations with:
	N	Mean	Standard deviation	Sense of belonging in school
Sense of belonging in school	243	2.06	0.92	1.000***
Alcohol use–life time amount	243	0.87	0.76	−0.215***
Cigarettes use–life time amount	243	0.65	0.75	−0.192**
Marijuana use–life time amount	241	0.42	0.66	0.057
Alcohol use–last 30 days amount	243	0.40	0.66	0.019
Cigarettes use–last 30 days amount	243	0.25	0.53	−0.139*
Marijuana use–last 30 days amount	240	0.32	0.63	0.103
Alcohol–frequency of use last 30 days	241	0.26	0.48	−0.128*
Cigarettes–frequency of use last 30 days	243	0.22	0.46	0.121
Marijuana–frequency of use last 30 days	241	0.23	0.49	0.093
Average use of all three substances last 30 days	243	0.24	0.40	−0.130*
Substance of choice–frequency of use	243	0.41	0.40	0.128
Number of drugs ever used	243	1.51	1.51	−0.143*
Age of initiation in drug use	242	11.50	5.50	0.197**

^*p < .05;

^**p < .01;

^***p < .001