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A DIF Analysis of Item-Level Mode Effects for Computerized and Paper-and-Pencil Tests.
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Schwarz, Richard D.; Rich, Changhua; Podrabsky, Tracy – 2003
This paper studied the usefulness of differential item functioning (DIF) methodology for examining potential mode effects. Although the goal was not to validate the comparability of the assessments per se, it is of interest to speculate why some formats could give rise to differential performance. Data were obtained from two instruments on which…
Descriptors: Adult Basic Education, Adults, Computer Assisted Testing, Elementary School Students