Figure 2.

Power to detect variance heterogeneity induced by interaction. Power to detect variance heterogeneity at p ≤ 0.05 using Levene's (circles) and SVLM (triangles) tests, as a function of the interaction effect, β_gF. Interacting allele frequency is 0.4. (A) Error term ϵ_i follows Normal distribution (B) Error term follows ${\chi }_{df=5}^2$ distribution (C) Error term follows ${\chi }_{df=1}^2$ distribution.