Scaling Performance Assessments: A Comparison of One-Parameter and Two-Parameter Partial Credit Models.

Fitzpatrick, Anne R.; And Others

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Peer reviewed

ERIC Number: EJ535137

Record Type: Journal

Publication Date: 1996

Pages: N/A

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ISSN: ISSN-0022-0655

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Scaling Performance Assessments: A Comparison of One-Parameter and Two-Parameter Partial Credit Models.

Fitzpatrick, Anne R.; And Others

Journal of Educational Measurement, v33 n3 p291-314 Fall 1996

One-parameter (1PPC) and two-parameter partial credit (2PPC) models were compared using real and simulated data with constructed response items present. Results suggest that the more flexible three-parameter logistic-2PPC model combination produces better model fit than the combination of the one-parameter logistic and the 1PPC models. (SLD)

Descriptors: Comparative Analysis, Constructed Response, Goodness of Fit, Performance Based Assessment, Scaling, Simulation, Test Items

Publication Type: Reports - Evaluative; Speeches/Meeting Papers; Journal Articles

Education Level: N/A

Audience: N/A

Language: English

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Authoring Institution: N/A

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