Confidence Envelopes for Item Response Theory.

Thissen, David; Wainer, Howard

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Peer reviewed

ERIC Number: EJ411254

Record Type: Journal

Publication Date: 1990

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Confidence Envelopes for Item Response Theory.

Thissen, David; Wainer, Howard

Journal of Educational Statistics, v15 n2 p113-28 Sum 1990

Confidence envelopes for one-parameter, two-parameter, and three-parameter logistic item response models are illustrated. M-line plots showing the genesis of the envelope and the density of lines in the confidence region are described and illustrated. (Author/SLD)

Descriptors: Equations (Mathematics), Graphs, Item Response Theory, Mathematical Models, Test Construction

Publication Type: Journal Articles; Reports - Evaluative

Education Level: N/A

Audience: N/A

Language: English

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