Item Information in the Rasch Model. Project Psychometric Aspects of Item Banking No. 34. Research Report 88-7 / Ron J. H. Engelen and Others.

Fisher's information measure for the item difficulty parameter in the Rasch model and its marginal and conditional formulations are investigated. It is shown that expected item information in the unconditional model equals information in the marginal model, provided the assumption of sampling examin...

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Bibliographic Details
Main Author:	Engelen, Ron J. H.
Corporate Author:	Twente Univ., Enschede (Netherlands). Dept. of Education
Language:	English
Published:	[Place of publication not identified] : Distributed by ERIC Clearinghouse, 1988.
Subjects:	Ability. Difficulty Level. Foreign Countries. Latent Trait Theory. Mathematical Models. Simulation. Statistical Analysis. Test Items. Item Information > Rasch Model Item Parameters Reports, Research.
Genre:	Reports, Research.
Physical Description:	39 pages
Format:	Microfilm Book

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