Table 2 Network Statistics for the Add Health Schools (n = 13) in the Analysis Sample
From: Peer selection and influence effects on adolescent alcohol use: a stochastic actor-based model
|  | Wave 1(n = 2563) | Wave 2 (n = 2299) |
|---|---|---|
Network Structure | ||
Mean number of adolescents per school (range) | 197.2 (48-987) | 176.8 (41-889) |
Mean number of friendship nominations per student | 2.04 | 1.85 |
Reciprocal friendships (%) | 22.9 | 25.3 |
Jaccard Indexa, mean (range) | .253 (.200-.325) | Â |
Individual Characteristics | ||
Alcohol use, past 12 months | ||
None (%) | 49.6 | 54.0 |
1-2 times (%) | 18.3 | 14.1 |
3-12 times (%) | 14.2 | 12.3 |
More than monthly, less than weekly (%) | 8.3 | 8.7 |
Weekly or more often (%) | 9.6 | 10.9 |