A Comparison of Three Simple Test Theory Models.

Ramsay, James O.

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Peer reviewed

ERIC Number: EJ401722

Record Type: Journal

Publication Date: 1989

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A Comparison of Three Simple Test Theory Models.

Ramsay, James O.

Psychometrika, v54 n3 p487-99 Sep 1989

An alternative to the Rasch model is introduced. It characterizes strength of response according to the ratio of ability and difficulty parameters rather than their difference. Joint estimation and marginal estimation models are applied to two test data sets. (SLD)

Descriptors: Ability, Bayesian Statistics, College Entrance Examinations, Comparative Analysis, Difficulty Level, Estimation (Mathematics), Mathematical Models, Maximum Likelihood Statistics, Test Theory

Publication Type: Journal Articles; Reports - Evaluative

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Language: English

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