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Kritika Thapa – ProQuest LLC, 2023
Measurement invariance is crucial for making valid comparisons across different groups (Kline, 2016; Vandenberg, 2002). To address the challenges associated with invariance testing such as large sample size requirements, the complexity of the model, etc., applied researchers have incorporated parcels. Parcels have been shown to alleviate skewness,…
Descriptors: Elementary Secondary Education, Achievement Tests, Foreign Countries, International Assessment
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Yalcin, Seher – Eurasian Journal of Educational Research, 2018
Purpose: Studies in the literature have generally demonstrated that the causes of differential item functioning (DIF) are complex and not directly related to defined groups. The purpose of this study is to determine the DIF according to the mixture item response theory (MixIRT) model, based on the latent group approach, as well as the…
Descriptors: Item Response Theory, Test Items, Test Bias, Error of Measurement