Type I error for the global hypothesis, moderate sample sizes.

Monte Carlo simulation results, based on K = 10,000 repetitions, regarding the type I error rate for testing the global hypothesis in the moderate sample size regime (nA = 20,nB = 30) for the asymptotic χ2-based test (χ2) and the permutation test (Perm). The data have been generated according to Model 1 with correlation parameter ρ. The nominal significance 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.Type I error for the global hypothesis, moderate sample sizes.