Table 1.
Cross‐sex tests for (A) heterogeneity of phenotypic variance (V P) and (B) G×S interactions. Also presented are comparisons of the full G×S model to restricted scenarios where (C) mf is freely estimated but V A assumed homogeneous and (D) V A(F) are allowed to differ V A(M) but mf is constrained to unity. For each comparison, null (H0) and alternate (H1) hypotheses are shown with statistical inference from likelihood ratio tests
| Trait | Comparison | H0 | H1 | χ2 | d.f. | P |
|---|---|---|---|---|---|---|
| AM | (A) | Homogeneous V P | Heterogeneous V P | 3.80 | 1 | 0.051 |
| (B) | No G×S | G×S | 5.90 | 2 | 0.052 | |
| (C) | G×S | r MF = +1, V A assumed homogeneous | 0.90 | 1 | 0.343 | |
| (D) | G×S | V A heterogeneous, r MF = +1 assumed | 1.70 | 1 | 0.427 | |
| WTM | (A) | Homogeneous V P | Heterogeneous V P | 11.9 | 1 | <0.001 |
| (B) | No G×S | G×S | 12.5 | 2 | 0.002 | |
| (C) | G×S | r MF = +1, V A assumed homogeneous | 0.04 | 1 | 0.842 | |
| (D) | G×S | V A heterogeneous, r MF = +1 assumed | 7.10 | 1 | 0.029 | |
| SLM | (A) | Homogeneous V P | Heterogeneous V P | 0.222 | 1 | 0.638 |
| (B) | No G×S | G×S | 14.9 | 2 | <0.001 | |
| (C) | G×S | r MF = +1, V A assumed homogeneous | 0.122 | 1 | 0.727 | |
| (D) | G×S | V A heterogeneous, r MF = +1 assumed | 9.07 | 1 | 0.011 |