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| Analisis Reliabilitas Ordinal× | Alpha Cronbach (Analisis Reliabilitas)× | |
|---|---|---|
| Bidang≠ | Psikometri | Statistika |
| Keluarga | Latent structure | Latent structure |
| Tahun asal≠ | 2007 | 1951 |
| Pencetus≠ | Bruno D. Zumbo and colleagues | Lee J. Cronbach |
| Tipe≠ | Internal consistency reliability estimation | Reliability / internal consistency coefficient |
| Sumber perintis≠ | Zumbo, B. D., Gadermann, A. M. & Zeisser, C. (2007). Ordinal versions of coefficients alpha and theta as measures of internal consistency for Likert rating scales. Journal of Modern Applied Statistical Methods, 6(1), 21–29. DOI ↗ | Cronbach, L. J. (1951). Coefficient alpha and the internal structure of tests. Psychometrika, 16(3), 297–334. DOI ↗ |
| Alias | ordinal alpha, polychoric reliability, reliability for ordinal scales, ORA | coefficient alpha, alpha reliability, internal consistency reliability, Güvenilirlik Analizi (Cronbach Alpha) |
| Terkait≠ | 5 | 4 |
| Ringkasan≠ | Ordinal reliability analysis estimates the internal consistency of scales whose items are measured on ordered-category (Likert-type) response formats. By basing computations on polychoric correlations rather than Pearson correlations, it corrects for the attenuation that standard Cronbach's alpha produces when responses are discrete and non-normal. | 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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