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Showing 1 to 2 of 2 for “"Differential item functioning. Item response theory"”.
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Methods of Detecting Differential Item Functioning: A Comparison of Item Response Theory and Confirmatory Factor Analysis
<p>Differential item functioning (DIF) occurs when an item performs statistically differently for a reference group than for a focal group. DIF is a threat to the validity of a test, and it can lead to illegal usage of a test in situations such as employee selection. Thus, DIF has important …
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Assessing Robustness of the Rasch Mixture Model to Detect Differential Item Functioning - A Monte Carlo Simulation Study
… are only due to true latent ability differences. Differential item functioning (DIF) occurs when measurement invariance is violated. There are two kinds of traditional tools for DIF detection: non-parametric methods and parametric methods. Mantel Haenszel (MH), SIBTEST, and standardization are …