Table 2 

Empirical type I error rate for random correlation structure when Embedded Image and all other Embedded Image Embedded Image based on multivariate normal distribution

Sample sizeNo. traitsTrait correlationNominal type I error rate
0.050.01
10040–0.20.0660.011
0.2–0.50.0650.013
0.5–0.80.0550.011
100–0.20.0770.018
0.2–0.50.1060.029
0.5–0.80.1120.039
50040–0.20.0650.007
0.2–0.50.0490.015
0.5–0.80.0470.008
100–0.20.0490.011
0.2–0.50.0670.016
0.5–0.80.0530.012
100040–0.20.0420.007
0.2–0.50.0550.009
0.5–0.80.0430.009
100–0.20.0720.012
0.2–0.50.0560.012
0.5–0.80.0560.011
  • Underlined values are for when empirical type I error exceeds the upper 95% C.I.