Comparing Chi Square And Log Linear Methods Of Detecting Differential Item Performance On A Minimum Competency Test
Download Comparing Chi Square And Log Linear Methods Of Detecting Differential Item Performance On A Minimum Competency Test PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Comparing Chi Square And Log Linear Methods Of Detecting Differential Item Performance On A Minimum Competency Test book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages.
Differential Item Functioning and Adverse Impact
This study serves as a comparative analysis of two measures for detecting differential item functioning (DIF) in item responses of 29,171 applicants on a 49 item selection test. The methods compared in this study were two of the more commonly used DIF detection procedures in the testing arena: the Mantel-Haenszel chi-square and the logistic regression procedure. The study focused on the overall effect each method had on adverse impact when used for the removal of items from a test. The study found that the presence of adverse impact findings were decreased by the removal of items displaying DIF, and that the effect on adverse impact differed by method of DIF detection. The study does not however, provide enough evidence to support the use of one DIF detection method over the other in applied settings where considerations such as cost and test reliability are of concern.