Table 6.

Prediction of Dichotomous Past Month Marijuana Use

		Model 1		Model 2		Model 3
		Coef.	SE	Coef.	SE	Coef	SE
Intercept		−4.776**	0.089	−1.076**	0.170	−0.940**	0.167
Friendship Group Position
Isolate		0.563 **	0.086	0.319**	0.090	0.142	0.111
Liaison		0.346**	0.110	0.380**	0.117	0.312**	0.120
Peripheral Member		0.368**	0.050	0.236**	0.056	0.112+	0.062
Non-Member		0.363+	0.189	0.255	0.225	0.155	0.228
Demographics and Research Design
Sex		0.206 **	0.038	0.052	0.041	−0.003	0.040
Hispanic		0.141+	0.083	0.224*	0.090	0.192*	0.091
Black		0.075	0.127	0.296*	0.148	0.274+	0.149
Native American		0.347	0.294	0.222	0.302	0.222	0.302
Asian		−1.035**	0.302	−0.974**	0.328	−0.994**	0.328
Other Ethnicity		0.458**	0.077	0.287**	0.078	0.265**	0.079
Biological Parents		−0.650**	0.031	−0.345**	0.038	−0.337**	0.040
School Lunch		0.076+	0.046	−0.025	0.046	−0.015	0.045
Wave 2		0.553**	0.061	0.392**	0.076	0.411**	0.077
Wave 3		1.274**	0.069	0.891**	0.092	0.906**	0.094
Wave 4		1.758**	0.069	1.337**	0.081	1.357**	0.083
Wave 5		2.162**	0.079	1.731**	0.098	1.742**	0.099
State		0.128*	0.053	0.105+	0.052	0.095+	0.053
Treatment Condition		−0.167**	0.055	−0.136*	0.055	−0.134*	0.055
Friend's Substance Use
Friends' Mean Use		4.270**	0.119	3.671**	0.124	3.763**	0.125
Friends’ Mean Use × Number of Friends		2.473**	0.111	2.250**	0.134	2.408**	0.137
Integration in Non-peer Contexts
School Bonding				−0.636**	0.035	−0.627**	0.035
Grades				−0.207**	0.017	−0.193**	0.017
Family Relations				−0.701**	0.058	−0.688**	0.057
Discipline				−0.114**	0.024	−0.114**	0.024
Religiosity				−0.063**	0.008	−0.062**	0.007
Connectedness to Network
Out-degree						−0.125**	0.012
In-degree						0.013	0.010
Reach						0.008**	0.003
Group Position Diffs (Wald, 4 df)		109.544**		47.432**		13.712**
Level 1–2 Variance Component		1.363		1.194		1.164
Level 3 Variance Component		0.026**		0.019**		0.019**
N		45787		44320		44320