Table 5.
ACE Parameter Estimates and Threshold Model Fit for Temperament Profiles and Factor Score
| Profile | Model | −2LL | df | Δ −2LL | Δ df | p | AIC | A | C or D | E |
|---|---|---|---|---|---|---|---|---|---|---|
| Regulated, Typical Reactive | ACE | 1508.02 | 1531 | – | – | – | −1553.98 |
.28
(.17-.42) |
.71
(.57-.81) |
.01
(.003-.031) |
| AE | 1563.44 | 1532 | 55.42 | 1 | < .001 | −1500.56 | ||||
| CE | 1535.00 | 1532 | 26.98 | 1 | < .001 | −1529.00 | ||||
| E | 1967.28 | 1533 | 459.26 | 2 | < .001 | −1098.72 | ||||
| Well-regulated, Positive Reactive | ACE | 1678.32 | 1531 | – | – | – | −1383.68 | .70 | .20 | .10 |
| AE | 1680.50 | 1532 | 2.18 | 1 | .14 | −1383.50 |
.91
(.84-.95) |
– |
.09
(.05-.16) |
|
| CE | 1704.37 | 1532 | 26.05 | 1 | <.001 | −1359.63 | ||||
| E | 1887.16 | 1533 | 208.84 | 2 | <.001 | −1178.84 | ||||
| Regulated, Surgent | ADE* | 1380.18 | 1531 | – | – | – | −1681.82 | .20 | .65 | .14 |
| AE | 1383.30 | 1532 | 3.11 | 1 | .08 | −1680.70 |
.84
(.73-.91) |
– |
.16
(.09-.27) |
|
| E | 1496.19 | 1533 | 116.01 | 2 | <.001 | −1569.81 | ||||
| Dysregulated, Negative Reactive | ACE | 1162.18 | 1531 | – | – | – | −1899.82 |
.52
(.31-.77) |
.44
(.21-.63) |
.03
(.01-.09) |
| AE | 1174.02 | 1532 | 11.84 | 1 | <.001 | −1889.98 | ||||
| CE | 1182.68 | 1532 | 20.49 | 1 | <.001 | −1881.32 | ||||
| E | 1367.20 | 1533 | 205.01 | 2 | <.001 | −1698.80 | ||||
| Temperament Factor Score | ||||||||||
| ACE | 3512.38 | 1530 | – | – | – | 452.38 | .78 (.62-.88) |
.02 (.00-.16) |
.20 (.18-.24) |
|
| AE | 3512.43 | 1531 | .05 | 1 | .82 | 450.43 |
.80
(.71-.88) |
– |
.20
(.18-.24) |
|
| CE | 3609.51 | 1531 | 97.13 | 1 | <.001 | 547.51 | ||||
| E | 3900.48 | 1532 | 388.10 | 2 | <.001 | 838.48 |
Note. −2LL = −2 log likelihood; df = degrees of freedom; Δ = change; p = probability; AIC = Akaike’s Information Criterion; A, C, D and E are standardized squared parameter estimates for additive genetic, common environment, dominant genetic, and nonshared environment factors, respectively. The most parsimonious model is indicated in bold, and standardized confidence intervals are reported in parentheses. The most parsimonious final model is indicated in bold.
*
We began with the ADE model because DZs where less than half as concordant than MZs.