期刊
APPLIED PSYCHOLOGICAL MEASUREMENT
卷 25, 期 2, 页码 107-135出版社
SAGE PUBLICATIONS INC
DOI: 10.1177/01466210122031957
关键词
appropriateness measurement; caution indices; item response theory; person fit; test theory
Person-fit methods based on classical test theory and item response theory (IRT), and methods investigating particular types of response behavior on tests, are examined. Similarities and differences among person-fit methods and their advantages and disadvantages are discussed. Sound person-fit methods have been derived for the Rasch model. For other IRT models, the empirical and theoretical distributions differ for most person-fit statistics when used with short and moderate length tests. The detection rate of person-fit statistics depends on the type of misfitting item-score patterns, test length, and trait levels. The usefulness of person-fit statistics for improving measurement depends on the application.
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