Select the method or formula of your choice.

The percentage of matches in the ratings.

The percent agreement = 100 * (m) / N

Term | Description |
---|---|

m | the number of matched ratings |

N | the total number of samples that are inspected |

Minitab calculates the confidence intervals for the percent agreement.

- 95% Lower Bound
- Minitab calculates the lower bound of the percent agreement confidence interval when α = 0.05 by:
- v
_{1}= 2m - v
_{2}= 2 (N – m + 1) - If percent = 0 (no agreement), the lower bound = 0. If percent = 1 (perfect agreement), use α instead of α/ 2 in the formula.
- 95% Upper Bound
- Minitab calculates the upper bound of the percent agreement confidence interval when α = 0.05 by:
- v
_{1}= 2 (m + 1) - v
_{2}= 2 (N – m) - If percent = 0 (no agreement), use a instead of α/ 2 in the formula. If percent = 1 (perfect agreement), the upper bound = 1.

Term | Description |
---|---|

Fv_{1}, v_{2}, 0.025 | the 2.5^{th} percentile of the F distribution with v_{1} and v_{2} degrees of freedom |

Fv_{1}, v_{2}, 0.975 | the 97.5^{th} percentile of the F distribution with v_{1} and v_{2} degrees of freedom |

m | the number of matches |

N | the number of inspected |