Table 1.
Descriptive statistics for PROSPER Peers sample (Waves 7–8)
| Mean/Proportion | SD | Min. | Max. | |
|---|---|---|---|---|
| Self-cutting | .07 | .26 | 0 | 1 |
| Network Variables | ||||
| Popularity | 2.78 | 2.17 | 0 | 15 |
| Sociality | 2.95 | 1.98 | 0 | 7 |
| Closeness | .22 | .08 | 0 | .44 |
| Bridging | .12 | .10 | 0 | .62 |
| Centrality | 0.79 | .10 | 0 | 4.5 |
| Reciprocity | .45 | .38 | 0 | 1 |
| Control Variables | ||||
| Depressive Symptoms | .16 | .37 | 0 | 1 |
| Friends’ Self-cutting | .07 | .17 | 0 | 1 |
| Male | .44 | .50 | 0 | 1 |
| White | .86 | .34 | 0 | 1 |
| Low SES | .19 | .39 | 0 | 1 |
| Family Relations | −.16 | .41 | −1.40 | .83 |
| School Adjustment | 3.67 | .67 | 1 | 5 |
| Out-of-Grade Friends | 10.08 | 6.29 | 0 | 20 |
| Max Out-Degree | .05 | .21 | 0 | 1 |
| Treatment | .49 | .50 | 0 | 1 |
| Wave Count | 1.78 | .42 | 1 | 2 |
| Observations | 11,160 | |||
| Respondents | 7,600 |