Measurement Error in Nonparametric Item Response Curve Estimation. Research Report. ETS RR-11-28 [electronic resource] / Hongwen Guo and Sandip Sinharay.

Nonparametric, or kernel, estimation of item response curve (IRC) is a concern theoretically and operationally. Accuracy of this estimation, often used in item analysis in testing programs, is biased when the observed scores are used as the regressor because the observed scores are contaminated by m...

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Bibliographic Details

Online Access:	Full Text (via ERIC)
Main Author:	Guo, Hongwen
Corporate Author:	Educational Testing Service
Other Authors:	Sinharay, S.
Format:	Electronic eBook
Language:	English
Published:	[S.l.] : Distributed by ERIC Clearinghouse, 2011.
Subjects:	Error of Measurement. Nonparametric Statistics. Item Response Theory. Computation. Comparative Analysis.