Table 2.
Reliability information and descriptive statistics for all scales
| Scale | Wave | n | Reliabilityb | Mean (SE) intervention | Mean (SE) control |
|---|---|---|---|---|---|
| Linking social capital | |||||
| School proactive | Wave 1 | 246 | α=0.81 | 3.11 (0.06) | 3.15 (0.06) |
| Wave 2 | 229 | α=0.71 | 3.57 (0.06) | 3.38 (0.07) | |
| Wave 3 | 220 | α=0.75 | 3.48 (0.06) | 3.33 (0.07) | |
| Extension reputation | Wave 1 | 234 | α=0.78 | 3.23 (0.06) | 3.05 (0.07) |
| Wave 2 | 228 | α=0.81 | 3.56 (0.06) | 3.17 (0.07) | |
| Wave 3 | 218 | α=0.78 | 3.57 (0.06) | 3.14 (0.07) | |
| Bridging social capital | |||||
| School problems | Wave 1 | 240 | r=0.33 | 2.54 (0.08) | 2.46 (0.09) |
| Wave 2 | 222 | r=0.36 | 2.25 (0.09) | 2.43 (0.10) | |
| Wave 3 | 217 | r=0.16 | 2.26 (0.09) | 2.43 (0.10) | |
| Changes in community | Wave 2 | 234 | α=0.83 | 3.91 (0.05) | 3.57 (0.06) |
| Wave 3 | 220 | α=0.86 | 3.94 (0.05) | 3.61 (0.07) | |
| Collaboration around prevention | Wave 1 | 99 | α=0.90 | 3.02 (0.07) | 3.21 (0.08) |
| Wave 2 | 88 | α=0.82 | 3.25 (0.07) | 3.18 (0.09) | |
| Wave 3 | 98 | α=0.90 | 3.17 (0.07) | 3.16 (0.08) | |
| Collaboration involvementa | Wave 1 | 66 | – | 5.15 (0.30) | 5.69 (0.38) |
| Wave 2 | 43 | – | 5.94 (0.36) | 6.02 (0.43) | |
| Wave 3 | 59 | – | 5.68 (0.31) | 5.97 (0.39) | |
| Formal contractsa | Wave 1 | 66 | – | 1.19 (0.29) | 2.16 (0.36) |
| Wave 2 | 43 | – | 2.36 (0.34) | 2.25 (0.41) | |
| Wave 3 | 59 | – | 1.51 (0.30) | 1.56 (0.38) | |
| Grant writinga | Wave 1 | 66 | – | 1.06 (0.28) | 1.83 (0.36) |
| Wave 2 | 43 | – | 1.71 (0.34) | 1.37 (0.41) | |
| Wave 3 | 59 | – | 1.44 (0.29) | 1.41 (0.37) | |
| Co-sponsor events/activitiesa | Wave 1 | 66 | – | 3.03 (0.37) | 3.47 (0.47) |
| Wave 2 | 43 | – | 3.22 (0.45) | 4.11 (0.54) | |
| Wave 3 | 59 | – | 2.14 (0.39) | 3.44 (0.49) | |
| Joint planninga | Wave 1 | 66 | – | 4.14 (0.34) | 5.00 (0.43) |
| Wave 2 | 43 | – | 4.80 (0.40) | 5.09 (0.49) | |
| Wave 3 | 59 | – | 4.16 (0.35) | 4.70 (0.44) | |
| Public life skill social capital | |||||
| Agency knowledge of prevention | Wave 1 | 206 | r=0.61 | 3.22 (0.05) | 3.34 (0.07) |
| Wave 2 | 191 | r=0.46 | 3.35 (0.05) | 3.24 (0.08) | |
| Wave 3 | 212 | r=0.41 | 3.29 (0.05) | 3.28 (0.06) | |
| Agency support of prevention | Wave 1 | 207 | α=0.56 | 3.65 (0.04) | 3.66 (0.06) |
| Wave 2 | 192 | α=0.59 | 3.46 (0.04) | 3.37 (0.06) | |
| Wave 3 | 212 | α=0.56 | 3.74 (0.04) | 3.65 (0.05) |
a
Chronbach’s alpha was used as the measure of reliability for all scales that had three or more items; Pearson’s correlations are reported for two-item scales
b
The collaboration scales are count scales; therefore, no reliability estimate is reported