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Download full textSahin, Alper; Anil, Duygu – Educational Sciences: Theory and Practice, 2017
This study investigates the effects of sample size and test length on item-parameter estimation in test development utilizing three unidimensional dichotomous models of item response theory (IRT). For this purpose, a real language test comprised of 50 items was administered to 6,288 students. Data from this test was used to obtain data sets of…
Descriptors: Test Length, Sample Size, Item Response Theory, Test Construction
Direct linkMakransky, Guido; Dale, Philip S.; Havmose, Philip; Bleses, Dorthe – Journal of Speech, Language, and Hearing Research, 2016
Purpose: This study investigated the feasibility and potential validity of an item response theory (IRT)-based computerized adaptive testing (CAT) version of the MacArthur-Bates Communicative Development Inventory: Words & Sentences (CDI:WS; Fenson et al., 2007) vocabulary checklist, with the objective of reducing length while maintaining…
Descriptors: Item Response Theory, Computer Assisted Testing, Adaptive Testing, Language Tests
de Jong, John H. A. L. – Toegepaste taalwetenschap in artikelen 20, 1984
A study investigated the validity of an English listening skills test by comparing the results of native American and British English speakers with those of Dutch students of English as a second language. A hypothesis suggested that two-thirds of the items would test listening skills and the remaining third would test other knowledge. Test results…
Descriptors: Age Differences, Comparative Analysis, Correlation, Educational Background
