A Confirmatory Study of Rasch-Based Optimal Categorization of a Rating Scale.

Zhu, Weimo

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Peer reviewed

ERIC Number: EJ649873

Record Type: Journal

Publication Date: 2002

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ISSN: ISSN-1529-7713

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A Confirmatory Study of Rasch-Based Optimal Categorization of a Rating Scale.

Zhu, Weimo

Journal of Applied Measurement, v3 n1 p1-15 2002

Studied whether the characteristics of the optimal categorization identified by Rasch analysis in a previous study could be maintained when the revised scale was applied to the same population (206 members of the original adult sample). Overall, the Rasch model fit well, and similar change patterns were observed in two category statistics provided by the Rasch model. (SLD)

Descriptors: Adults, Classification, Goodness of Fit, Item Response Theory, Test Construction

Publication Type: Journal Articles; Reports - Research

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Audience: N/A

Language: English

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