Calibration sample n=353 | Validation sample n=484 | ||
---|---|---|---|

Metrics | Initial model | Revised model | Revised model |

Speaking up climate for safety | |||

Number of items | 6 | 5 | 5 |

Omitted items | – | 1 | 1 |

χ^{2} | 16.61 | 5.63 | 15.29 |

p Value of χ^{2} | 0.01 | 0.23 | 0.004 |

Degrees of freedom | 6 | 4 | 4 |

χ^{2}/df ratio | 2.77 | 1.41 | 3.82 |

RMSEA | 0.07 | 0.03 | 0.08 |

SRMR | 0.04 | 0.02 | 0.02 |

CFI | 0.98 | 1.00 | 0.98 |

NFI | 0.97 | 0.99 | 0.98 |

Speaking up climate for professionalism | |||

No. of items | 7 | 4 | 4 |

Omitted items | – | 1, 2, 4 | 1, 2, 4 |

χ^{2} | 77.70 | 1.60 | 0.52 |

p Value of χ^{2} | <0.001 | 0.206 | 0.47 |

Degrees of freedom | 11 | 1 | 1 |

χ^{2}/df ratio | 7.06 | 1.60 | 0.52 |

RMSEA | 0.13 | 0.04 | 0.00 |

SRMR | 0.07 | 0.01 | 0.01 |

CFI | 0.89 | 1.00 | 1.00 |

NFI | 0.87 | 1.00 | 1.00 |

CFI, comparative fit index; NFI, normed fit index; RMSEA, root mean square error approximation; SRMR, standardised root mean square residual.