Peer reviewedERIC Number: EJ191551
Record Type: Journal
Publication Date: 1978
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Abstractor: N/A
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Relationships between the Thurstone and Rasch Approaches to Item Scaling.
Andrich, David
Applied Psychological Measurement, v2 n3 p451-62 Sum 1978, 78
When the logistic function is substituted for the normal, Thurstone's Case V specialization of the law of comparative judgment for paired comparison responses gives an identical equation for the estimation of item scale values, as does the Rasch formulation for direct responses. Comparisons are made. (Author/CTM)
Descriptors: Item Analysis, Latent Trait Theory, Mathematical Models, Rating Scales, Test Construction
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Language: English
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