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Download full textRudas, Tamas; Zwick, Rebecca – 1995
A method is proposed to assess the importance of differential item functioning (DIF) by estimating the largest possible fraction of the population in which DIF does not occur, or equivalently, the smallest possible portion of the population in which DIF may occur. The approach is based on latent class (C. C. Clogg, 1981) or mixture concepts, and…
Descriptors: Estimation (Mathematics), Goodness of Fit, Item Bias, Maximum Likelihood Statistics
