Observed Type I Error Rate | Power | ||||||
---|---|---|---|---|---|---|---|

Data set | α level | t-test | t-test, PCA corrected | EMMA | t-test | t-test, PCA corrected | EMMA |

Liti et al. (2009) (n = 36) | α = 0.05 | 0.197 | 0.019 | 0.098 | 0.804 | 0.277 | 0.729 |

α = 1 × 10^{−5} | 5.0 × 10^{−4} | 2.95 × 10^{−6} | 2.0 × 10^{−4} | 0.033 | 0.001 | 0.014 | |

Schacherer et al. (2009) (n = 63) | α = 0.05 | 0.161 | 0.043 | 0.084 | 0.961 | 0.495 | 0.930 |

α = 1 × 10^{−5} | 3.0 × 10^{−4} | 1.57 × 10^{−5} | 2.0 × 10^{−4} | 0.137 | 0.008 | 0.152 |