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Download full textSinharay, Sandip; Haberman, Shelby J.; Jia, Helena – Educational Testing Service, 2011
Standard 3.9 of the "Standards for Educational and Psychological Testing" (American Educational Research Association, American Psychological Association, & National Council for Measurement in Education, 1999) demands evidence of model fit when an item response theory (IRT) model is used to make inferences from a data set. We applied two recently…
Descriptors: Item Response Theory, Goodness of Fit, Statistical Analysis, Language Tests
