Estimation of Latent Ability and Item Parameters When There Are Omitted Responses [electronic resource] / Frederic M. Lord.

Omitted items cannot properly be treated as wrong when estimating ability and item parameters. A convenient method for utilizing the information provided by omissions is presented. Some theoretical and considerable empirical justification is adduced for the estimates obtained by both old and new met...

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Bibliographic Details

Online Access:	Full Text (via ERIC)
Main Author:	Lord, Frederic M., 1912-2000
Corporate Author:	Educational Testing Service
Format:	Electronic eBook
Language:	English
Published:	[S.l.] : Distributed by ERIC Clearinghouse, 1973.
Subjects:	Mathematical Models. Probability. Psychometrics. Research Reports. Scoring Formulas. Test Results.