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| Affidabilità inter-rater (kappa di Cohen e ICC)× | Kappa di Fleiss per l'accordo tra valutatori multipli× | |
|---|---|---|
| Campo≠ | Psicometria | Statistica |
| Famiglia≠ | Latent structure | Hypothesis test |
| Anno di origine≠ | 1960 (kappa); 1979 (ICC) | 1971 |
| Ideatore≠ | Cohen (kappa, 1960); Shrout & Fleiss (ICC, 1979) | Joseph L. Fleiss |
| Tipo≠ | Reliability / agreement analysis | Non-parametric agreement measure |
| Fonte seminale≠ | Cohen, J. (1960). A Coefficient of Agreement for Nominal Scales. Educational and Psychological Measurement, 20(1), 37–46. DOI ↗ | Fleiss, J.L. (1971). Measuring Nominal Scale Agreement Among Many Raters. Psychological Bulletin, 76(5), 378–382. DOI ↗ |
| Alias≠ | inter-rater reliability, interrater agreement, rater agreement, Değerlendiriciler Arası Güvenilirlik (Cohen's κ, ICC) | multi-rater kappa, Fleiss kappa, Fleiss' Kappa (Çoklu Değerlendirici Uyumu) |
| Correlati≠ | 6 | 2 |
| Sintesi≠ | Interrater reliability quantifies the degree to which two or more independent raters produce consistent scores when evaluating the same individuals or products. The family encompasses Cohen's kappa, introduced in 1960 for categorical judgments, and the Intraclass Correlation Coefficient (ICC) for continuous ratings, together spanning most measurement scenarios encountered in behavioral, health, and educational research. | Fleiss' Kappa is a non-parametric statistic for measuring the degree of agreement among three or more raters who classify items into mutually exclusive nominal categories. Introduced by Joseph L. Fleiss in 1971 as a generalization of Cohen's Kappa beyond two raters, it corrects observed agreement for the level of agreement expected by chance alone, making it the standard reliability index in medical diagnosis studies, content analysis, and multi-coder research. |
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