An IRT-Based Model for Dichotomous Longitudinal Data.

Fischer, Gerhard H.

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Peer reviewed

ERIC Number: EJ404592

Record Type: Journal

Publication Date: 1989

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An IRT-Based Model for Dichotomous Longitudinal Data.

Fischer, Gerhard H.

Psychometrika, v54 n4 p599-624 Dec 1989

The linear logistic model with relaxed assumption is extended to designs with any number of time points or with different sets of items presented on different occasions, provided that one unidimensional subscale is available per latent trait. A sample application is presented. (SLD)

Descriptors: Data Interpretation, Equations (Mathematics), Estimation (Mathematics), Item Response Theory, Longitudinal Studies, Mathematical Models, Maximum Likelihood Statistics, Statistical Analysis

Publication Type: Journal Articles; Reports - Evaluative

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Language: English

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