Sensitivity of Marginal Maximum Likelihood Estimation of Item and Ability Parameters to the Characteristics of the Prior Ability Distributions.

Seong, Tae-Je

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Peer reviewed

ERIC Number: EJ430699

Record Type: Journal

Publication Date: 1990

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ISSN: ISSN-0146-6216

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Sensitivity of Marginal Maximum Likelihood Estimation of Item and Ability Parameters to the Characteristics of the Prior Ability Distributions.

Seong, Tae-Je

Applied Psychological Measurement, v14 n3 p299-311 Sep 1990

The sensitivity of marginal maximum likelihood estimation of item and ability (theta) parameters was examined when prior ability distributions were not matched to underlying ability distributions. Thirty sets of 45-item test data were generated. Conditions affecting the accuracy of estimation are discussed. (SLD)

Descriptors: Ability, Computer Simulation, Equations (Mathematics), Estimation (Mathematics), Item Response Theory, Mathematical Models, Maximum Likelihood Statistics, Statistical Distributions, Test Items

Publication Type: Journal Articles; Reports - Evaluative

Education Level: N/A

Audience: N/A

Language: English

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