Showing inter-rater reliability for caries
Cohen’s weighted kappa | ||||||
---|---|---|---|---|---|---|
Ratings | Weighted kappaa | Asymptotic | 95% Asymptotic confidence interval | |||
Standard errorb | zc | Sig. | Lower bound | Upper bound | ||
observer 1–observer 2 | 0.844 | 0.016 | 24.649 | < 0.001 | 0.814 | 0.875 |
observer 1–observer 3 | 0.784 | 0.019 | 22.818 | < 0.001 | 0.747 | 0.821 |
observer 1–observer 4 | 0.838 | 0.017 | 24.389 | < 0.001 | 0.804 | 0.872 |
observer 1–AI | 0.903 | 0.013 | 26.418 | < 0.001 | 0.877 | 0.928 |
observer 2–observer 3 | 0.789 | 0.020 | 22.862 | < 0.001 | 0.750 | 0.827 |
observer 2–observer 4 | 0.821 | 0.019 | 23.726 | < 0.001 | 0.784 | 0.858 |
observer 2–AI | 0.903 | 0.013 | 26.217 | < 0.001 | 0.877 | 0.928 |
observer 3–observer 4 | 0.787 | 0.019 | 22.617 | < 0.001 | 0.748 | 0.825 |
observer 3–AI | 0.845 | 0.018 | 24.510 | < 0.001 | 0.808 | 0.881 |
observer 4–AI | 0.884 | 0.016 | 25.381 | < 0.001 | 0.853 | 0.916 |
a The estimation of the weighted kappa uses linear weights; b value does not depend on either null or alternative hypotheses; c estimates the asymptotic standard error assuming the null hypothesis that weighted kappa is zero. Sig: significance