Figure 2. Power comparisons of the 7 tests for power as a function of factorial correlation (ρ_fa) under scenarios 2 to 4, and as a function of phenotypic correlation (ρ_phe) under scenario 6.

The total number of phenotypes is 20. The sample size is 1,000. MAF is 0.3. The factor loadings are 0.75. In scenarios 2 and 3, the effect size (β) is 0.2. In scenario 4, the effect size (β) is 0.3. In scenario 6, the effect size (β) is 0.1. The powers are evaluated at 0.1% significance level.