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The Effect Of Missing Data Handling Methods And Its Volume On Detecting Differential Item Functioning Of Test Items, Iman Ghazou, Amal Al-Zoubi
The Effect Of Missing Data Handling Methods And Its Volume On Detecting Differential Item Functioning Of Test Items, Iman Ghazou, Amal Al-Zoubi
Jordan Journal of Applied Science-Humanities Series
This study aimed to investigating the effect different methods for handling missing data and its volume on detecting differential item functioning (DIF) for items of test according to the gender variable using the generalized Mantel Haenszel test (GMH). To achieve the aims of the study, the responses of Jordanian eighth grade students to the items of the mathematics test in the International Study (TIMSS, 2015) were obtained. The sample of the study consisted of 2261 students, who responded to four test booklets (1, 7, 9, 13). Several methods were used for handling missing data (missing data as nominal, corrected item …