Table 1. Descriptive Statistics for Group Level Analyses.

Variable	Mean (%)	SD	Min	Max
Group Level Dependent Variables
Group Size	10.46	5.34	2	36
Reciprocity	.38	.19	0	1
Transitivity	.42	.21	0	1
Density	.29	.15	.06	1
Structural Cohesion	3.02	1.01	.33	6.89
Stability	.35	.25	0	1
Average Popularity	.57	.13	.19	.96
Centrality	.84	.51	0	2.60
Group Level Independent Variables
Group Delinquency (IRT)	.44	.45	-.34	2.70
Group Drinking (%)	.36	.23	0	1
Free Lunch (%)	.26	.23	0	1
Two-Parent Family (%)	.77	.16	.13	1
Male Group	.28	.45	0	1
Female Group	.31	.46	0	1
White Group	.38	.49	0	1
Family Attachment	-.21	.22	-1.05	.50
Grades	3.86	.57	1.80	5
Religious Attendance	4.29	1.25	1.17	7.60
Friends Outside of School	5.26	1.69	1	11
School Level Variables
State	1.48	.50	1	2
Condition	.48	.50	0	1