Empirical family-wise error rates.

Monte Carlo simulation results, based on K = 5,000 repetitions, regarding the FWER for the asymptotic χ2-based multiple test (χ2) and the multiple permutation test (Perm). The data have been generated according to Model 1 with correlation parameter ρ and d = 5. The nominal FWER level was set to α = 5% in all simulations. The permutation test was carried out as a Monte Carlo permutation test employing 9,999 randomly chosen permutations of {1,…,N}, together with the identity permutation.Empirical family-wise error rates.