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A Rasch Model for Continuous Ratings
Psychometrika, 1987A unidimensional latent trait model for continuous ratings is developed. This model is an extension of Andrich's rating formulation which assumes that the response process at latent thresholds is governed by the dichotomous Rasch model. Item characteristic functions and information functions are used to illustrate that the model takes ceiling and floor
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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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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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Rasch-Rasch Modelization of Missing Data
2011Bertoli Barsotti L, PUNZO, ANTONIO
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