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ERIC Number: EJ785477
Record Type: Journal
Publication Date: 2007-Dec
Pages: 11
Abstractor: Author
Reference Count: 0
ISBN: N/A
ISSN: ISSN-0033-3123
Limits on Log Odds Ratios for Unidimensional Item Response Theory Models
Haberman, Shelby J.; Holland, Paul W.; Sinharay, Sandip
Psychometrika, v72 n4 p551-561 Dec 2007
Bounds are established for log odds ratios (log cross-product ratios) involving pairs of items for item response models. First, expressions for bounds on log odds ratios are provided for one-dimensional item response models in general. Then, explicit bounds are obtained for the Rasch model and the two-parameter logistic (2PL) model. Results are also illustrated through an example from a study of model-checking procedures. The bounds obtained can provide an elementary basis for assessment of goodness of fit of these models.
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Publication Type: Journal Articles; Reports - Evaluative
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A