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Table 3 Change of the power with λ for four different methods when the distributions are Beta ( s 1 +δ , s 2 δ ) and Beta (5s 1 δ , 5s 2 +δ ) for the case and control groups; δ takes the values of -3λ, -2λ, -λ, 0.5λ, λ , and 1.5λ for the six age groups and s 1 = s 2 = 4

From: Age-adjusted nonparametric detection of differential DNA methylation with case-control designs

λ Combined t-test Linear regression Combined Wilcoxon Combined BWS
0 0.056 0.053 0.073 0.669
0.05 0.075 0.057 0.094 0.703
0.1 0.182 0.087 0.200 0.832
0.15 0.402 0.141 0.412 0.939
0.2 0.701 0.212 0.687 0.988
0.25 0.911 0.298 0.893 0.999