Table 3.

Results from multi-level modeling 11th grade: frequency drinking at school last 30 days

Fixed effect	Coefficient	se	t Ratio
Model for Individuals (N = 3,318)
Commercial sources	0.108	0.007	13.70**
Friends >21 source	0.012	0.009	1.34
Friends <21 source	0.004	0.013	0.32
Parent source	0.018	0.022	0.82
Stole from home source	0.113	0.020	5.46**
Model for Communities (N=93)
Commercial access rate (CAR)	0.058	0.025	2.28**
Minor in possession enforcement (MIP)	−0.023	0.022	−1.05
Cross-Level Effects
CAR → Commercial source	−0.043	0.008	−5.03**
CAR → Friend > 21 source	0.009	0.008	1.12
CAR → Friend < 21 source	−0.000	0.014	−0.06
CAR → Parent source	0.059	0.023	2.53**
CAR → Home source	0.036	0.021	1.74+
MIP → Commercial source	−0.019	0.008	−2.29**
MIP → Friend > 21 source	−0.049	0.010	−4.83**
MIP → Friend <21 source	0.021	0.015	1.45
MIP → Parent source	−0.021	0.021	−1.00
MIP → Home source	−0.021	0.023	−0.94

Variance
Random effect	Component	se	t-value
Community means, u0j	0.010	0.005	1.89*
Commercial source slopes, u1j	0.014	0.004	3.06**
Friends >21 source slopes, u2j	0.031	0.006	4.74**
Friends <21 source slopes, u3j	0.015	0.005	2.63**
Parent source slopes, u4j	0.030	0.015	1.95*
Stole from home source slopes, u5j	0.086	0.033	2.55**
Individual students, rij	0.725	0.018	38.65**

⁺p < .10,

^*p < .05,

^**p < .01