Fig. 5

Sample size dependence: party vs. permimp implementation. Data sets were sampled with pairwise correlations of either ρ=.00,.05,.10, or.25 between 18 normally distributed predictors. Sample size was either N=500,1000, or 2500, and either no, half or all the predictors had a linear impact on the continuous outcome variable. The dependence tests within the party (correlation t-test) and the permimp implementation (χ²-test based on the tree-growing split points) were applied. The proportion of p-values lower than.05 within the party and permimp implementation are indicated in blue and pink respectively. The dashed line corresponds to a proportion of.05