To what extent are item discrimination values realistic? A new index for two-dimensional structures

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dc.authorid0000-0003-3129-1763en_US
dc.authorid0000-0002-6767-0362en_US
dc.contributor.authorKılıç, Abdullah Faruk
dc.contributor.authorUysal, İbrahim
dc.date.accessioned2023-09-14T09:39:58Z
dc.date.available2023-09-14T09:39:58Z
dc.date.issued2022en_US
dc.departmentBAİBÜ, Eğitim Fakültesi, Eğitim Bilimleri Bölümüen_US
dc.description.abstractMost researchers investigate the corrected item-total correlation of items when analyzing item discrimination in multi-dimensional structures under the Classical Test Theory, which might lead to underestimating item discrimination, thereby removing items from the test. Researchers might investigate the corrected item-total correlation with the factors to which that item belongs; however, getting a general overview of the entire test is impossible. Based on this problem, this study aims to recommend a new index to investigate item discrimination in two-dimensional structures through a Monte Carlo simulation. The new item discrimination index is evaluated by identifying sample size, item discrimination value, inter-factor correlation, and the number of categories. Based upon the results of the study it can be claimed that the proposed item discrimination index proves acceptable performance for two-dimensional structures. Accordingly, using this new item discrimination index could be recommended to researchers when investigating item discrimination in two-dimensional structures.en_US
dc.identifier.citationKılıç, A. F. & Uysal, İ. (2022). To what extent are item discrimination values realistic? A new index for two-dimensional structures . International Journal of Assessment Tools in Education , 9 (3) , 728-740 . DOI: 10.21449/ijate.1098757en_US
dc.identifier.doi10.21449/ijate.1098757
dc.identifier.endpage740en_US
dc.identifier.issn2148-7456
dc.identifier.issue3en_US
dc.identifier.startpage728en_US
dc.identifier.trdizinid1121746en_US
dc.identifier.urihttp://dx.doi.org/10.21449/ijate.1098757
dc.identifier.urihttps://hdl.handle.net/20.500.12491/11698
dc.identifier.volume9en_US
dc.identifier.wosWOS:000865587500011en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakTR-Dizinen_US
dc.institutionauthorUysal, İbrahim
dc.language.isoenen_US
dc.publisherIjate-Int Journal Assessment Tools Educationen_US
dc.relation.ispartofInternational Journal of Assessment Tools in Educationen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectItem Discriminationen_US
dc.subjectMulti-Dimensionalen_US
dc.subjectStructuresen_US
dc.subjectClassical Test Theoryen_US
dc.subjectCorrected Item-Totalen_US
dc.subjectCorrelationen_US
dc.titleTo what extent are item discrimination values realistic? A new index for two-dimensional structuresen_US
dc.typeArticleen_US

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