Table 4 Variance estimates across families and communities, and the intra-class correlation coefficient for the multilevel models for substance use among adolescent boys
Random Effect Parameters | Null | Model 1 | Model 2 | Model 3 |
|---|---|---|---|---|
Community (PSU) random variance (SE) | 0.20 (0.06) | 0.57 (0.39) | 0.40 (0.20) | 0.35 (0.17) |
Household random variance (SE) | 0.18 (0.39) | 5.09 (6.32) | 3.83 (2.83) | 3.78 (2.76) |
Community (PSU) ICC (%) | 5.7 | 6.0 | 5.4 | 4.7 |
Household ICC (%) | 10.7 | 63.1 | 56.3 | 55.6 |