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Direct linkWells, Craig S.; Cohen, Allan S.; Patton, Jeffrey – International Journal of Testing, 2009
A primary concern with testing differential item functioning (DIF) using a traditional point-null hypothesis is that a statistically significant result does not imply that the magnitude of DIF is of practical interest. Similarly, for a given sample size, a non-significant result does not allow the researcher to conclude the item is free of DIF. To…
Descriptors: Test Bias, Test Items, Statistical Analysis, Hypothesis Testing
