When Are Item Response Models Consistent with Observed Data?.

Holland, Paul W.

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Peer reviewed

ERIC Number: EJ246454

Record Type: Journal

Publication Date: 1981-Mar

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When Are Item Response Models Consistent with Observed Data?

Holland, Paul W.

Psychometrika, v46 n1 p79-92 Mar 1981

Deciding whether sets of test data are consistent with any of a large class of item response models is considered. The assumption of local independence is weakened to a new condition, local nonnegative dependence (LND). Necessary and sufficient conditions are derived for a LND item response model. (Author/JKS)

Descriptors: Item Analysis, Latent Trait Theory, Mathematical Models, Psychometrics, Statistical Analysis, Test Theory

Publication Type: Journal Articles; Reports - Evaluative

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Language: English

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