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An Extension of the Rating Scale Model with an Application to the Measurement of Change
ARTICLE

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Psychometrika Volume 56, Number 4, ISSN 0033-3123

Abstract

The polytomous unidimensional Rasch model with equidistant scoring (rating scale model) is extended so that two parameters are linearly decomposed into certain basic parameters. A conditional maximum likelihood estimation procedure and a likelihood ratio test are presented in the context of the extended model (linear rating scale model). (SLD)

Citation

Fischer, G.H. & Parzer, P. (1991). An Extension of the Rating Scale Model with an Application to the Measurement of Change. Psychometrika, 56(4), 637. Retrieved December 8, 2022 from .

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