A Comparison of the Standardization and IRT Methods of Adjusting Pretest Item Statistics Using Realistic Data [electronic resource] / Shun-Wen Chang, Bradley A. Hanson and Deborah J. Harris.

The requirement of large sample sizes for calibrating items based on item response theory (IRT) models is not easily met in many practical pretesting situations. Although classical item statistics could be estimated with much smaller samples, the values may not be comparable across different groups...

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Bibliographic Details

Online Access:	Full Text (via ERIC)
Main Author:	Chang, Shun-Wen
Other Authors:	Hanson, Bradley A., Harris, Deborah J.
Format:	Electronic eBook
Language:	English
Published:	[Place of publication not identified] : Distributed by ERIC Clearinghouse, 2001.
Subjects:	Item Response Theory. Pretests Posttests. Sample Size. Test Items. Test Theory.