Relationship between item characteristics and DIF detection under the MIMIC model


In this study we show that, in general, a DIF item with low-discrimination is more likely to be mistakenly chosen into the anchor set; even if it is tested for DIF, it is difficult to detect the DIF effect.

Work presented at the Ideas in Testing Research Seminar, hosted jointly by the Illinois Institute of Technology (IIT) and Pearson VUE. Please contact the author for further details.