Ojedapo David Olugbade

Gender-related Differential Item Functioning in a Social Studies Test: A Three-parameter Logistic IRT Analysis

Ojedapo David Olugbade & Adeniji Jude Kentom · Asian Journal of Education and Social Studies · 2026

This study investigated gender-related differential item functioning (DIF) in a multiple-choice Social Studies achievement test using a three-parameter logistic (3PL) Item Response Theory framework. The instrument comprised 50 items selected from an initial pool of 120 items deve...