Search results for author:"Guo-Wei Sun"
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The DIF-Free-Then-DIF Strategy for the Assessment of Differential Item Functioning
Wen-Chung Wang; Ching-Lin Shih; Guo-Wei Sun
Educational and Psychological Measurement Vol. 72, No. 4 (August 2012) pp. 687–708
The DIF-free-then-DIF (DFTD) strategy consists of two steps: (a) select a set of items that are the most likely to be DIF-free and (b) assess the other items for DIF (differential item functioning) using the designated items as anchors. The rank...