Table 3.
Univariate ACE/ADE Model Fit and Parameter Estimates
| Mother-Report | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Scale | Model | −2LL | df | Δ −2LL | Δ df | p | AIC | A | C/D | E |
| Anger (M) | ACE | 3200.83 | 1296 | – | – | – | 608.83 | .45 (.28–.62) | .26 (.11–.41) | .29 (.24–.35) |
| AE | 3212.3 | 1297 | 11.47 | 1 | < .001 | 618.3 | ||||
| CE | 3224.38 | 1297 | 23.55 | 1 | < .001 | 630.38 | ||||
| E | 3467.2 | 1298 | 266.37 | 2 | < .001 | 871.2 | ||||
|
| ||||||||||
| Sadness (M) | ACE | 2735.37 | 1296 | – | – | – | 143.37 | .45 (.28–.62) | .27 (.11–.42) | .28 (.24–.35) |
| AE | 2746.55 | 1297 | 11.18 | 1 | < .001 | 152.55 | ||||
| CE | 2759.46 | 1297 | 24.09 | 1 | < .001 | 165.46 | ||||
| E | 3013.49 | 1298 | 278.12 | 2 | < .001 | 417.49 | ||||
|
| ||||||||||
| Fear (M) | ADE | 3338.77 | 1296 | – | – | – | 746.77 | .44 (.09–.79) | .31 (.00–.67) | .25 (.09–.30) |
| AE | 3342.11 | 1297 | 3.34 | 1 | 0.07 | 748.11 | .74 (.65–.84) | – | .26 (.22–.31) | |
| E | 3561.64 | 1298 | 222.87 | 2 | < .001 | 965.64 | ||||
|
| ||||||||||
| Father-Report | ||||||||||
|
| ||||||||||
| Anger (F) | ADE | 2589.2 | 1088 | – | – | – | 413.2 | .71 (.34–.84) | .02 (.00–.39) | .27 (.22–.33) |
| AE | 2589.21 | 1089 | 0.01 | 1 | 0.92 | 411.21 | .73 (.62–.84) | – | .27 (.23–.33) | |
| E | 2770.14 | 1090 | 180.94 | 2 | < .001 | 590.14 | ||||
|
| ||||||||||
| Sadness (F) | ACE | 2101.4 | 1088 | – | – | – | −74.6 | .53 (.34–.73) | .19 (.01–.36) | .28 (.23–.36) |
| AE | 2105.87 | 1089 | 4.47 | 1 | 0.03 | −72.13 | ||||
| CE | 2128.32 | 1089 | 26.92 | 1 | < .001 | −49.68 | ||||
| E | 2321.43 | 1090 | 220.03 | 2 | < .001 | 141.43 | ||||
|
| ||||||||||
| Fear (F) | ADE | 2624.4 | 1088 | – | – | – | 448.4 | .77 (.40–.90) | .03 (.00–.38) | .20 (.17–.25) |
| AE | 2624.42 | 1089 | 0.02 | 1 | 0.89 | 446.42 | .80 (.70–.90) | – | .20 (.17–.25) | |
| E | 2873.52 | 1090 | 249.12 | 2 | < .001 | 693.52 | ||||
|
| ||||||||||
| Observed | ||||||||||
|
| ||||||||||
| Anger (O) | ACE | 2652.21 | 1231 | – | – | – | 190.21 | .39 (.12–.57) | .06 (.00–.27) | .55 (.46–.66) |
| AE | 2652.58 | 1232 | 0.37 | 1 | 0.54 | 188.58 | .47 (.36–.57) | – | .53 (.46–.63) | |
| CE | 2660.1 | 1232 | 7.89 | 1 | < .001 | 196.1 | ||||
| E | 2730.44 | 1233 | 78.23 | 2 | < .001 | 264.44 | ||||
|
| ||||||||||
| Sadness (O) | ACE | 2831.78 | 1230 | – | – | – | 371.78 | .06 (.00–.36) | .18 (.00–.30) | .76 (.64–.87) |
| AE | 2834.29 | 1231 | 2.51 | 1 | 0.11 | 372.29 | ||||
| CE | 2831.94 | 1231 | 0.16 | 1 | 0.69 | 369.94 | – | .22 (.14–.31) | .78 (.70–.87) | |
| E | 2862.82 | 1232 | 31.04 | 2 | < .001 | 398.82 | ||||
|
| ||||||||||
| Fear (O) | ACE | 2589.27 | 1164 | – | – | – | 261.27 | .00 (.00–.23) | .46 (.27–.56) | .54 (.45–.61) |
| AE | 2610.58 | 1165 | 21.32 | 1 | < .001 | 280.58 | ||||
| CE | 2589.27 | 1165 | 0 | 1 | .99 | 259.27 | – | .46 (.37–.56) | .54 (.48–.61) | |
| E | 2722.58 | 1166 | 133.31 | 2 | < .001 | 390.58 | ||||
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, and nonshared environment factors, respectively. Standardized confidence intervals are reported in parentheses. The most parsimonious final model is indicated in bold.