Comparison of power. Comparison of power for Procedures 2, 3 and 4, and the simple B-H method. Power (I) is with respect to the m×q individual hypotheses. Power (II) is with respect to the m hypothesis sets (genes). In the legend, “Bonferroni” refers to Procedure 2, the same as that proposed in Guo et al. (2010). “Holm” and “Hochberg” refer to Procedures 3 and 4 respectively, which are our newly proposed procedures. Results here are for ρ=0. The other correlations settings have very similar results.