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Kurnaz-Adibatmaz, Fatma Betül; Yildiz, Hüseyin – Journal of Theoretical Educational Science, 2020
In this study logistic regression and Lord's Chi Square methods were used to research the items that have DIF. The study utilized Peabody Picture Vocabulary Test (PPVT). The original form of the PPVT includes four options. Three different forms (A, B and C) were formed by removing one of the distractors respectively. The original form of PPVT was…
Descriptors: Item Analysis, Test Items, Vocabulary, Verbal Ability