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

Fischer, G. H.; Parzer, P.

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Peer reviewed

ERIC Number: EJ443855

Record Type: Journal

Publication Date: 1991

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ISSN: ISSN-0033-3123

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

Fischer, G. H.; Parzer, P.

Psychometrika, v56 n4 p637-51 Dec 1991

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)

Descriptors: Change, Computer Simulation, Equations (Mathematics), Estimation (Mathematics), Generalization, Item Response Theory, Mathematical Models, Maximum Likelihood Statistics, Rating Scales, Scoring

Publication Type: Journal Articles; Reports - Evaluative

Education Level: N/A

Audience: N/A

Language: English

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Authoring Institution: N/A

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Author Affiliations: N/A