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| クロンバックのα（信頼性分析）× | 評者間信頼性（コーエンのカッパおよびICC）× | |
|---|---|---|
| 分野≠ | 統計学 | 心理測定学 |
| 系統 | Latent structure | Latent structure |
| 提唱年≠ | 1951 | 1960 (kappa); 1979 (ICC) |
| 提唱者≠ | Lee J. Cronbach | Cohen (kappa, 1960); Shrout & Fleiss (ICC, 1979) |
| 種類≠ | Reliability / internal consistency coefficient | Reliability / agreement analysis |
| 原典≠ | 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 ↗ |
| 別名≠ | 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) |
| 関連≠ | 4 | 6 |
| 概要≠ | 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. |
| ScholarGateデータセット ↗ |
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