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| Journal of Educational… | 1 |
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| Wainer, Howard | 1 |
| Wang, Xiaohui | 1 |
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Peer reviewedWainer, Howard; Wang, Xiaohui – Journal of Educational Measurement, 2000
Modified the three-parameter model to include an additional random effect for items nested within the same testlet. Fitted the new model to 86 testlets from the Test of English as a Foreign Language (TOEFL) and compared standard parameters (discrimination, difficulty, and guessing) with those obtained through traditional modeling. Discusses the…
Descriptors: English (Second Language), Language Tests, Scoring, Statistical Analysis
