An Exploratory Strategy to Identify and Define Sources of Differential Item Functioning.

ABSTRACT: The sources of differential item functioning (DIF) items are usually identified through a qualitative content review by a panel of experts. However, the differential functioning for some DIF items might have been caused by reasons outside of the experts' experiences, leading to the sources for these DIF items possibly being misidentified. Quantitative methods can help to provide useful information, such as the DIF status and the number of sources of the DIF, which in turn help the item review and revision process to be more efficient and precise. However, the current quantitative methods assume all possible sources should be known in advance and collected to accompany the item response data, which is not always the case in reality. To this end, an exploratory strategy, combined with the MI

SUBMITTER: Cheng CP 

PROVIDER: S-EPMC7495792 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature