পদ্ধতির তুলনা করুন
নির্বাচিত পদ্ধতিগুলো পাশাপাশি পর্যালোচনা করুন; যে সারিগুলোয় পার্থক্য আছে সেগুলো চিহ্নিত করা হয়।
| কম্পিউটারাইজড অ্যাডাপ্টিভ টেস্টের ক্রোনব্যাকের আলফা× | আইটেম রেসপন্স থিওরি (IRT)× | |
|---|---|---|
| ক্ষেত্র | মনোমিতি | মনোমিতি |
| পরিবার | Latent structure | Latent structure |
| উদ্ভবের বছর≠ | 1984 | 1952–1968 |
| প্রবর্তক≠ | Adapted from Cronbach (1951); CAT reliability framing developed by Green, Bock, Humphreys, Linn & Reckase (1984) | Frederic M. Lord (and Allan Birnbaum for the 2PL/3PL models) |
| ধরন≠ | Reliability / internal consistency estimation | Probabilistic measurement model |
| মৌলিক উৎস≠ | 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 ↗ | Lord, F. M. & Novick, M. R. (1968). Statistical Theories of Mental Test Scores. Addison-Wesley. link ↗ |
| অপর নাম | CAT reliability estimation, adaptive test internal consistency, CAT coefficient alpha, reliability in CAT | IRT, latent trait theory, item characteristic curve theory, modern test theory |
| সম্পর্কিত≠ | 3 | 5 |
| সারসংক্ষেপ≠ | 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. | Item response theory models the probability that a respondent answers an item correctly (or endorses it) as a function of the respondent's latent trait level and the item's own statistical properties — difficulty, discrimination, and guessing. Unlike classical test theory, IRT places persons and items on the same scale, yielding measurement that is sample-independent for items and test-independent for persons. |
| ScholarGateডেটাসেট ↗ |
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