Influences on the Mantel-Haenszel chi-square in detection of differential item functioning under Rasch conditions.
The Mantel-Haenszel chi-square (χ2MH) is widely used to detect differential item functioning (item bias) between ethnic and gender-based subgroups on educational and psychological tests. The empirical behavior of χ2MH has been incompletely understood; previous research is inconclusive. The present...
| Publicado en: | Perceptual & Motor Skills Vol. 80; pp. 1071 - 1075 |
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| Formato: | Artículo |
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Ammons Scientific, Ltd.
June 1995 pt2
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=508560713&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 508560713 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 00315125 PSK jtl: Perceptual & Motor Skills issn: 00315125 maglogo: N pubinfo: dt: June 1995 pt2 vid: 80 pid: 726 pub: Ammons Scientific, Ltd. artinfo: ui: 508560713 ppf: 1071 ppct: 4 formats: tig: atl: Influences on the Mantel-Haenszel chi-square in detection of differential item functioning under Rasch conditions. aug: au: Uttaro, Thomas su: Examination item analysis Chi-squared test sug: subj: Examination item analysis Chi-squared test keyword: Tests and scales -- Item analysis, difficulty, etc ab: The Mantel-Haenszel chi-square (χ2MH) is widely used to detect differential item functioning (item bias) between ethnic and gender-based subgroups on educational and psychological tests. The empirical behavior of χ2MH has been incompletely understood; previous research is inconclusive. The present simulation study explored the effects of sample size, number of items, and trait distributions on the power of χ2MH to detect modeled differential item functioning. A significant effect was obtained for sample size with unacceptably low power for 250 subjects each in the focal and reference groups. The discussion supports the 1990 recommendations of Swaminathan and Rogers, opposes the 1993 view of Zieky that a sample size of 250 for each group is adequate. Reprinted by permission of the publisher, 1995. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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