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Abedi, Jamal; Leon, Seth; Kao, Jenny C. – National Center for Research on Evaluation, Standards, and Student Testing (CRESST), 2008
This study examines performance differences between students with disabilities and students without disabilities students using differential item functioning (DIF) analyses in a high-stakes reading assessment. Results indicated that for Grade 9, many items exhibited DIF. Items that exhibited DIF were more likely to be located in the second half…
Descriptors: Test Bias, Test Items, Student Evaluation, Disabilities
White, Karl R.; Carcelli, Larry – 1982
The effect on children's test scores of different item formats used in standardized mathematics achievement tests was investigated. In a Utah school, 40 second grade students completed a mathematics computation test using eight different formats derived from five standardized achievement tests. Identical content, taken from the most frequently…
Descriptors: Achievement Tests, Comparative Analysis, Computation, Elementary School Mathematics