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Direct linkWells, Craig S.; Hambleton, Ronald K.; Kirkpatrick, Robert; Meng, Yu – Applied Measurement in Education, 2014
The purpose of the present study was to develop and evaluate two procedures flagging consequential item parameter drift (IPD) in an operational testing program. The first procedure was based on flagging items that exhibit a meaningful magnitude of IPD using a critical value that was defined to represent barely tolerable IPD. The second procedure…
Descriptors: Test Items, Test Bias, Equated Scores, Item Response Theory
