【摘 要】
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Differential Item Functioning(DIF) occurs when items behave differently for examinees at the same ability level that are in different groups.Choosing a proper group of invariant items as anchors is an
【机 构】
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University of Notre Dame,USA
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Differential Item Functioning(DIF) occurs when items behave differently for examinees at the same ability level that are in different groups.Choosing a proper group of invariant items as anchors is an essential step in the detection of DIF.
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