Accession Number : ADA256284


Title :   Simultaneous DIF Amplification and Cancellation: Shealy-Stout's Test for DIF


Descriptive Note : Technical rept.


Corporate Author : ILLINOIS UNIV AT URBANA DEPT OF STATISTICS


Personal Author(s) : Nandakumar, Ratna


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a256284.pdf


Report Date : 15 Aug 1992


Pagination or Media Count : 38


Abstract : The present study investigates the phenomena of simultaneous DIF amplification and cancellation and SIBTEST's role in detecting such. A variety of simulated test data were generated for this purpose. In addition, real test data from various sources were used. The results from both simulated as well as real test data, as Shealy and Stout's theory suggests, show that the SIBTEST is effective in assessing the DIF amplification and cancellation (partially or fully) at the test score level. Finally, methodological and substantive implications of DIF amplification and cancellation are discussed. SIBTEST, DIF, Item bias, Test bias, Bias amplification, Bias cancellation.


Descriptors :   *STATISTICAL TESTS , *BIAS , TEST AND EVALUATION , ADDITION , CANCELLATION , AMPLIFICATION


Subject Categories : Statistics and Probability


Distribution Statement : APPROVED FOR PUBLIC RELEASE