Table 3:
Phenotypic, genetic and environmental correlations between aggression, rule-breaking behavior and sleep measures from the bivariate analyses
| Phenotypes (model) | Phenotypic correlation |
rG | rC | rE |
|---|---|---|---|---|
| Aggression with | ||||
| Sleep less than most kids (AE) | 0.38 | 0.64 (0.50, 0.80) | * | −0.27 (−0.51, 0.01 |
| Nightmares (AE) | 0.28 | 0.40 (0.30, 0.51) | * | 0.02 (−0.14, 0.18) |
| Overtired (AE) | 0.42 | 0.58 (0.42, 0.76) | * | 0.02 (−0.29, 0.36) |
| Sleep more than most kids (AE) | 0.17 | 0.42 (0.24, 0.63) | * | −0.47 (−0.70, −0.16) |
| Talks or walks (AE) | 0.15 | 0.27 (0.15, 0.38) | * | −0.10 (−0.27, 0.08) |
| Trouble sleeping (AE) | 0.34 | 0.56 (0.41, 0.74) | * | −0.01 (−0.19, 0.19) |
| Rule-Breaking with | ||||
| Sleep less than most kids (ACE) | 0.32 | 0.24 (−0.07, 0.49) | 1 (0.58, 1) | −0.03 (−0.30, 0.25) |
| Nightmares (ACE) | 0.27 | 0.06 (−0.27, 0.42) | 0.99 (0.37, 1) | 0.09 (−0.08, 0.26) |
| Overtired (ACE) | 0.36 | 0.13 (−0.54, 0.44) | 1 (0.45, 1) | 0.28 (−0.04, 0.60) |
| Sleep more than most kids (AE) | 0.23 | 0.40 (0.25, 0.57) | * | −0.30 (−0.57, 0.02) |
| Talks or walks (ACE) | 0.17 | 0.01 (−0.31, 0.27) | 1 (0.36, 1) | −0.01 (−0.18, 0.18) |
| Trouble sleeping (ACE) | 0.23 | 0.46 (0.18, 0.84) | 1 (−1, 1) | −0.25 (−0.44, −0.05) |
rC: shared environment correlation; rE: non-shared environmental correlation: rG: genetic correlation. Bold text indicates significant results.