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Muraki, Eiji; Engelhard, George, Jr. – 1985
Recent developments in dichotomous factor analysis based on multidimensional item response models (Bock and Aitkin, 1981; Muthen, 1978) provide an effective method for exploring the dimensionality of questionnaire items. Implemented in the TESTFACT program, this "full information" item factor analysis accounts not only for the pairwise…
Descriptors: Elementary Education, Estimation (Mathematics), Factor Analysis, Item Analysis