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On Keats' Generalization of the Rasch Model
Psychometrika, 1977Parameter estimation for Keats generalization of the Rasch model that takes account of guessing behavior is investigated. It is shown that no minimal sufficient statistics for the ability parameters independent of the difficulty parameters exist. Thus Andersen's conditional inference technique for consistent estimation is not applicable to Keats' model.
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Educational and Psychological Measurement, 1996
The need for equating is one of the principal reasons for using an item response model rather than the classical model to guide test construction. Use of the Rasch item response model in test construction makes equating especially easy. The Rasch model, however, does not have a guessing parameter, whereas most tests that require equating contain ...
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The need for equating is one of the principal reasons for using an item response model rather than the classical model to guide test construction. Use of the Rasch item response model in test construction makes equating especially easy. The Rasch model, however, does not have a guessing parameter, whereas most tests that require equating contain ...
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Rasch Trees: A New Method for Detecting Differential Item Functioning in the Rasch Model
Psychometrika, 2015C. Strobl, J. Kopf, A. Zeileis
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Test of Monotonicity for the Rasch Model
2002Sums of independent non-identically distributed indicators have been studied by numerous authors. We give an application of them to some questionnaire models.
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