Table 3.
Genetic model fitting results on CPRS-R:S ratings
| Model | Parameters | -2 LL | With model | Δdf | Δχ² | p |
|---|---|---|---|---|---|---|
| Oppositional behavior in 7-year-old children | ||||||
| 1. Fully saturated | 84 | 4779.36 | — | — | — | — |
| 2. Equal correlations same and different teachers | 78 | 4812.26 | 1 | 6 | 32.91 | <0.001 |
| 3. ACE model, estimates of ACE are allowed to be different between same and different teachers | 44 | 4817.94 | 1 | 40 | 38.58 | 0.534 |
| 4. ACE, ACE same teacher = ACE different teacher | 40 | 4853.84 | 3 | 4 | 35.90 | <0.001 |
| 5. Correlated errors ACE model | 42 | 4819.80 | 1 | 42 | 40.44 | 0.540 |
| 6. Correlated errors AE model | 40 | 4823.93 | 5 | 2 | 4.13 | 0.127 |
| 7. Correlated errors AE model, AE boys = AE girls | 38 | 4829.76 | 6 | 2 | 5.83 | 0.054 |
| 8. Correlated errors AE model, AE boys = AE girls, opposite-sex genetic correlation-free | 37 | 4821.86 | 7 | 1 | 7.90 | 0.005 |
| Cognitive problems-inattention in 7-year-old children | ||||||
| 1. Fully saturated | 84 | 6785.90 | — | — | — | — |
| 2. Equal correlations same and different teachers | 78 | 6822.57 | 1 | 6 | 36.67 | <0.001 |
| 3. ACE model, estimates of ACE are allowed to be different between same and different teachers | 44 | 6815.94 | 1 | 40 | 30.04 | 0.874 |
| 4. ACE, ACE same teacher = ACE different teacher | 40 | 6843.87 | 3 | 4 | 27.93 | <0.001 |
| 5. Correlated errors ACE model | 42 | 6815.85 | 1 | 42 | 29.95 | 0.918 |
| 6. Correlated errors AE model | 40 | 6820.01 | 5 | 2 | 4.16 | 0.125 |
| 7. Correlated errors AE model, AE boys = AE girls | 38 | 6821.99 | 6 | 2 | 1.98 | 0.372 |
| 8. Correlated errors AE model, AE boys = AE girls, opposite-sex genetic correlation-free | 39 | 6817.50 | 7 | 1 | 4.49 | 0.034 |
| Hyperactivity in 7-year-old children | ||||||
| 1. Fully saturated | 84 | 6880.07 | — | — | — | — |
| 2. Equal correlations same and different teachers | 78 | 6906.97 | 1 | 6 | 26.90 | <0.001 |
| 3. ACE model, estimates of ACE are allowed to be different between same and different teachers | 44 | 6914.59 | 1 | 40 | 34.42 | 0.715 |
| 4. ACE, ACE same teacher = ACE different teacher | 40 | 6942.35 | 3 | 4 | 27.76 | <0.001 |
| 5. Correlated errors ACE model | 42 | 6924.12 | 1 | 42 | 44.05 | 0.385 |
| 6. Correlated errors AE model | 40 | 6926.76 | 5 | 2 | 2.64 | 0.267 |
| 7. Correlated errors AE model, AE boys = AE girls | 38 | 6929.06 | 6 | 2 | 2.30 | 0.317 |
| 8. Correlated errors AE model, AE boys = AE girls, opposite sex genetic correlation-free | 37 | 6919.99 | 7 | 1 | 9.07 | 0.003 |
| ADHD in 7-year-old children | ||||||
| 1. Fully saturated | 84 | 7420.21 | — | — | — | — |
| 2. Equal correlations same and different teachers | 78 | 7458.10 | 1 | 6 | 37.89 | <0.001 |
| 3. ACE model, estimates of ACE are allowed to be different between same and different teachers | 44 | 7472.59 | 1 | 40 | 52.38 | 0.091 |
| 4. ACE, ACE same teacher = ACE different teacher | 40 | 7507.40 | 3 | 4 | 34.81 | <0.001 |
| 5. Correlated errors ACE model | 42 | 7477.78 | 1 | 42 | 57.57 | 0.055 |
| 6. Correlated errors AE model | 40 | 7479.14 | 5 | 2 | 1.36 | 0.507 |
| 7. Correlated errors AE model, AE boys = AE girls | 38 | 7480.72 | 6 | 2 | 1.58 | 0.454 |
| 8. Correlated errors AE model, AE boys = AE girls, opposite-sex genetic correlation-free | 37 | 7475.93 | 7 | 1 | 4.79 | 0.029 |