Nonparametric Item Response Function Estimation for Assessing Parametric Model Fit.

Douglas, Jeffrey; Cohen, Allan

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Peer reviewed

ERIC Number: EJ638471

Record Type: CIJE

Publication Date: 2001

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ISSN: ISSN-0146-6216

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Nonparametric Item Response Function Estimation for Assessing Parametric Model Fit.

Douglas, Jeffrey; Cohen, Allan

Applied Psychological Measurement, v25 n3 p234-43 Sep 2001

Developed models to investigate the fit of parametric item response models by comparing them to models fitted under nonparametric assumptions. Illustrated these techniques through simulation studies and real-data examples. Discusses the identifiability and estimation consistency of item response theory models. (SLD)

Descriptors: Estimation (Mathematics), Goodness of Fit, Item Response Theory, Models, Nonparametric Statistics, Simulation

Publication Type: Journal Articles; Reports - Evaluative

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Language: English

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Grant or Contract Numbers: N/A

Note: Special issue titled "Nonparametric Item Response Theory." Research supported in part by National Institutes of Health Grant No. R01 CA81068-01.