Differential Item Functioning vs Differential Test Functioning [electronic resource] / Betty A. Bergstrom and Others.

A problem that arises when a differential item functioning (DIF) study is done with samples of examinees differing in ability is examined. A test may function differently when the populations from which the items are calibrated are not of equal ability. Since the lower ability examinees get many dif...

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Bibliographic Details

Online Access:	Full Text (via ERIC)
Main Author:	Bergstrom, Betty A.
Format:	Electronic eBook
Language:	English
Published:	[S.l.] : Distributed by ERIC Clearinghouse, 1993.
Subjects:	Ability. Error of Measurement. Grade 11. Grade 12. High School Students. High Schools. Item Bias. Item Response Theory. Mathematics. Sample Size. Sampling.