Power for Multi-SKAT tests when phenotypes have compound symmetric correlation structures. Empirical power for minPhen, Hom, Het, PhC, PC-Sel, minP plotted against the number of phenotypes associated with the gene of interest with a total of 5 phenotypes under consideration. Upper row shows the results for ρ = 0.3 and lower row for ρ = 0.7. Left column shows results with SKAT kernel ΣG, and right columns shows results with Burden kernel. All the causal variants were trait-increasing variants.