Table 4.
Estimates (95% CI) from the best-fitting model.
| Variance | h2 | c2 | e2 |
|---|---|---|---|
| Positive affect | 0.23 (0.02, 0.45) | 0.49 (0.29, 0.65) | 0.28 (0.22, 0.37) |
| Prosocial behaviors | 0.47 (0.21, 0.66) | 0.20 (0.05, 0.42) | 0.32 (0.25, 0.42) |
| Internalizing problems | 0.44 (0.23, 0.68) | 0.31 (0.09, 0.49) | 0.25 (0.19, 0.33) |
| Covariance | rg | rc | re |
| Positive affect—Prosocial behaviors | – | 0.75 (0.42, 1.00) | 0.21 (0.07, 0.34) |
| Positive affect—Internalizing problems | – | −0.58 (−1.00, −0.33) | −0.22 (−0.35, −0.08) |
| Prosocial behaviors—Internalizing problems | −0.36 (−0.64, −0.15) | – | – |
h2, genetic variance; c2, shared environmental variance; e2, non-shared environmental variance. rg, rc, and re denote the genetic, shared environmental, and non-shared environmental correlations, respectively.