ERIC Number: EJ443855
Record Type: Journal
Publication Date: 1991
Reference Count: N/A
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)
Publication Type: Journal Articles; Reports - Evaluative
Education Level: N/A
Authoring Institution: N/A