Differential Item Functioning

Differential Item Functioning (DIF) is a psychometric phenomenon, whereby an Item’s Characteristic Curve (ICC) differs for members of specific subgroups. Often, this suggests that this specific item measures different psychological constructs depending on the subgroup, disadvantaging members of a specific subgroup.
The full description can be found here:
www.testpartne...
Our entire glossary can be found over at Test Partnership:
www.testpartne...