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| Alfa Cronbacha (Analiza Rzetelności)× | Niezawodność międzyoceniająca (kappa Cohena i ICC)× | |
|---|---|---|
| Dziedzina≠ | Statystyka | Psychometria |
| Rodzina | Latent structure | Latent structure |
| Rok powstania≠ | 1951 | 1960 (kappa); 1979 (ICC) |
| Twórca≠ | Lee J. Cronbach | Cohen (kappa, 1960); Shrout & Fleiss (ICC, 1979) |
| Typ≠ | Reliability / internal consistency coefficient | Reliability / agreement analysis |
| Źródło pierwotne≠ | Cronbach, L. J. (1951). Coefficient alpha and the internal structure of tests. Psychometrika, 16(3), 297–334. DOI ↗ | Cohen, J. (1960). A Coefficient of Agreement for Nominal Scales. Educational and Psychological Measurement, 20(1), 37–46. DOI ↗ |
| Inne nazwy≠ | coefficient alpha, alpha reliability, internal consistency reliability, Güvenilirlik Analizi (Cronbach Alpha) | inter-rater reliability, interrater agreement, rater agreement, Değerlendiriciler Arası Güvenilirlik (Cohen's κ, ICC) |
| Pokrewne≠ | 4 | 6 |
| Podsumowanie≠ | Cronbach's alpha is a coefficient of internal consistency that quantifies the degree to which a set of items on a scale measures the same underlying construct. Introduced by Lee J. Cronbach in 1951, it remains the most widely reported reliability index in social-science, health, and educational research. | 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. |
| ScholarGateZbiór danych ↗ |
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