השוואת שיטות
סקרו את השיטות שבחרתם זו לצד זו; שורות שבהן יש הבדל מודגשות.
| מקדם קאפה של כהן× | אלפא של קרונבך (ניתוח מהימנות)× | |
|---|---|---|
| תחום | סטטיסטיקה | סטטיסטיקה |
| משפחה≠ | Hypothesis test | Latent structure |
| שנת המקור≠ | 1960 | 1951 |
| הוגה השיטה≠ | Jacob Cohen | Lee J. Cronbach |
| סוג≠ | Inter-rater reliability coefficient | Reliability / internal consistency coefficient |
| מקור מכונן≠ | Cohen, J. (1960). A Coefficient of Agreement for Nominal Scales. Educational and Psychological Measurement, 20(1), 37–46. DOI ↗ | Cronbach, L. J. (1951). Coefficient alpha and the internal structure of tests. Psychometrika, 16(3), 297–334. DOI ↗ |
| כינויים≠ | kappa coefficient, kappa statistic, Cohen's Kappa (Değerlendiriciler Arası Uyum) | coefficient alpha, alpha reliability, internal consistency reliability, Güvenilirlik Analizi (Cronbach Alpha) |
| קשורות≠ | 3 | 4 |
| תקציר≠ | Cohen's kappa (κ) is a statistical measure of inter-rater reliability for categorical classifications, introduced by Jacob Cohen in 1960. Unlike simple percent agreement, kappa corrects for the level of agreement that would be expected purely by chance, making it the standard metric when two raters independently assign observations to the same set of mutually exclusive categories. | 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. |
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