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A novel technique of detecting DIF in items using z-score based on IRT model
preprintposted on 2021-09-23, 17:11 authored by Ankita DeyAnkita Dey
A novel technique of detecting DIF in items using z-score based on IRT model. A simple technique based on z-score is proposed and derived for Rasch Model and also compared with traditional DIF detection methods. The data set used for application is the State Level Achievement Survey data set from West Bengal, India. Binary responses on 40-item tests of 12518 examinees are taken.
Declaration of conflicts of interestNone
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Lead author institutionNational Institute of Tuberculosis and Respiratory Diseases, India
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