The Item Log-Likelihood Surface for Two- and Three-Parameter Item Characteristic Curve Models.

Baker, Frank B.

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Peer reviewed

ERIC Number: EJ391526

Record Type: Journal

Publication Date: 1988

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The Item Log-Likelihood Surface for Two- and Three-Parameter Item Characteristic Curve Models.

Baker, Frank B.

Applied Psychological Measurement, v12 n4 p387-95 Dec 1988

The form of item log-likelihood surface was investigated under two-parameter and three-parameter logistic models. Results confirm that the LOGIST program procedures used to locate the maximum of the likelihood functions are consistent with the form of the item log-likelihood surface. (SLD)

Descriptors: Estimation (Mathematics), Factor Analysis, Graphs, Latent Trait Theory, Mathematical Models, Maximum Likelihood Statistics, Predictive Measurement, Test Items

Publication Type: Journal Articles; Reports - Research

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Language: English

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