A Comparison of Item- and Person-Fit Methods of Assessing Model-Data Fit in IRT.

Reise, Steven P.

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Peer reviewed

ERIC Number: EJ419328

Record Type: Journal

Publication Date: 1990

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ISSN: ISSN-0146-6216

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A Comparison of Item- and Person-Fit Methods of Assessing Model-Data Fit in IRT.

Reise, Steven P.

Applied Psychological Measurement, v14 n2 p127-37 Jun 1990

To demonstrate that some methods used to assess item fit can be applied to assess person fit and vice versa, performance of a chi-squared item-fit statistic was compared with that of a likelihood-based person-fit statistic for examinees and items under Monte Carlo conditions. (SLD)

Descriptors: Chi Square, Comparative Analysis, Goodness of Fit, Item Response Theory, Mathematical Models, Monte Carlo Methods, Statistical Analysis, Test Items

Publication Type: Journal Articles; Reports - Evaluative

Education Level: N/A

Audience: N/A

Language: English

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