title: A Note on Statistical Hypothesis Testing Based on Log Transformation of the Mantel-Haenszel Common Odds Ratio for Differential Item Functioning Classification.
abstract: When differential item functioning (DIF) is investigated, DIF classification is made using statistical test results and estimated DIF sizes in practice. One of the well-known DIF classifications is that of the Educational Testing Service (ETS) A (negligible DIF), B (medium DIF), and C (large DIF) rules. This article provides a clarifying note on (a) a sketch of the proof of the asymptotic normality of what is known as the Mantel-Haenszel (MH) delta, which provides the basis of a point and an interval null hypothesis test based on the MH delta, and (b) how to conduct an interval null hypothesis test using the MH delta, which is necessary for the C DIF classification.
authors: Educational Psychology & Learning Systems, Florida State University, 3204D Stone Building, 1114 W. Call St., Tallahassee, FL, 32306-4453, USA, ipaek@fsu.edu.
authors: Insu
authors: I
authors: Paek
authors: Paul
authors: P
authors: Holland
mesh_terms: D000465:Algorithms; D015233:Models, Statistical; D016017:Odds Ratio; D011594:Psychometrics