Table 5 Univariate ACE model fitting results for different handedness measures and estimates of variance components of A, C, and E
From: Prevalence and heritability of handedness in a Hong Kong Chinese twin and singleton sample
Measure | % Variance | Fit of ACE Model | Fit of Constrained Models | ΔLL (vs. ACE Model) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
A | C | E | -2LL | df | AE | CE | E | AE | CE | E | |
Writing hand a | .266 | .000 | .734 | 213.69 | 379 | 213.69 | 214.36 | 214.64 | 0.00 | 0.67 | 0.94 |
Drawing handa | .235 | .000 | .765 | 281.75 | 379 | 281.75 | 282.59 | 282.93 | 0.00 | 0.84 | 1.18 |
EHI | .205 | .000 | .795 | 3945.86 | 380 | 3945.86 | 3951.25 | 3951.25 | 0.00 | 5.39* | 5.39 |
EHI2 a | .376 | .000 | .624 | 178.66 | 379 | 178.66 | 179.55 | 180.44 | 0.00 | 0.89 | 1.78 |
PegQ | .217 | .000 | .783 | 2934.79 | 390 | 2934.79 | 2937.02 | 2939.54 | 0.00 | 2.23 | 4.75 |
PegQ2a | .253 | .000 | .747 | 302.96 | 389 | 302.96 | 302.65 | 304.34 | 0.00 | 0.69 | 1.38 |