2013 Volume 9 Issue 1 Pages 85-106
The main purpose of this study is to analyze differential item functioning (DIF) items of a spatial ability test (S.A.T) for Myanmar middle school students. In this study, we examined the DIF items in the S.A.T across gender and ethnicity by using three DIF analysis methods; Lord's Chi-square (LC) method, Logistic Regression (LR) method, and Mantel-Haenszel (MH) method. Of the 40 items of the S.A.T, there were eleven significant DIF items each for both of ethnicity based comparison and gender based comparison. Especially, most of DIF items for ethnicity based comparison were identified in Block Rotation task of S.A.T, and most of DIF items for gender based comparison displayed in Paper Folding task.
