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Table 3 Comparison of α and statistical power for iterated false positive rate and variable variance. The values are the same as those given in Table 1 and Table 2 except the variance for each sample was drawn from a uniform distribution between 0.05 and 1 during the simulation. The significance level (α) for the PE method was iterated so that the observed false positive rate matched that of the MP method where α was held constant.

From: A two-sample Bayesian t-test for microarray data

n1 = n2 = n ν0 αPE αMP FPPE FPMP PowerPE PowerMP
2 0 - 0.05 - 0.0554 - 0.4038
2 2 0.190 0.05 0.0593 0.0592 0.5876 0.5756
2 6 0.090 0.05 0.0522 0.0521 0.6838 0.6859
2 16 0.067 0.05 0.0573 0.0571 0.7563 0.7566