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| اختبار التكيف الحاسوبي ألفا كرونباخ× | ألفا كرونباخ (تحليل الموثوقية)× | |
|---|---|---|
| المجال≠ | القياس النفسي | الإحصاء |
| العائلة | Latent structure | Latent structure |
| سنة النشأة≠ | 1984 | 1951 |
| صاحب الطريقة≠ | Adapted from Cronbach (1951); CAT reliability framing developed by Green, Bock, Humphreys, Linn & Reckase (1984) | Lee J. Cronbach |
| النوع≠ | Reliability / internal consistency estimation | Reliability / internal consistency coefficient |
| المصدر التأسيسي≠ | Green, B. F., Bock, R. D., Humphreys, L. G., Linn, R. L., & Reckase, M. D. (1984). Technical guidelines for assessing computerized adaptive tests. Journal of Educational Measurement, 21(4), 347–360. DOI ↗ | Cronbach, L. J. (1951). Coefficient alpha and the internal structure of tests. Psychometrika, 16(3), 297–334. DOI ↗ |
| الأسماء البديلة | CAT reliability estimation, adaptive test internal consistency, CAT coefficient alpha, reliability in CAT | coefficient alpha, alpha reliability, internal consistency reliability, Güvenilirlik Analizi (Cronbach Alpha) |
| ذات صلة≠ | 3 | 4 |
| الملخص≠ | Cronbach's alpha applied to computerized adaptive test (CAT) data estimates internal consistency reliability under the special condition that different examinees receive different subsets of items. Because the classic formula assumes every respondent answers the same items, its direct application to CAT data violates core assumptions and typically underestimates or misrepresents true reliability, requiring careful adaptation or replacement with IRT-based reliability indices. | 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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