Marginal Maximum Likelihood Estimation of Item Parameters: Application of an EM Algorithm.

Bock, R. Darrell; Aitkin, Murray

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Peer reviewed

ERIC Number: EJ263853

Record Type: Journal

Publication Date: 1981-Dec

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Marginal Maximum Likelihood Estimation of Item Parameters: Application of an EM Algorithm.

Bock, R. Darrell; Aitkin, Murray

Psychometrika, v46 n4 p443-59 Dec 1981

The practicality of using the EM algorithm for maximum likelihood estimation of item parameters in the marginal distribution is presented. The EM procedure is shown to apply to general item-response models. (Author/JKS)

Descriptors: Algorithms, Factor Analysis, Goodness of Fit, Item Analysis, Latent Trait Theory

Publication Type: Journal Articles; Reports - Evaluative

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Language: English

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