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Socialgruppsskillnader i resultat på högskoleprovet
Umeå University, Faculty of Social Sciences, Department of Educational Measurement.
2005 (Swedish)Report (Other academic)
Abstract [sv]

The Swedish Scholastic Aptitude Test (SweSAT) has been used for selection to higher education in Sweden since 1977. The most important demand on the test is that it should rank test-takers as fairly as possible with regard to their expected study success. Another demand is for unbiased admission, which means that, no group should be discriminated against because of e.g. gender or social class. Several studies have been performed on gender differences in test results, but differences between social classes have been scarcely studied. The main aim of this study was to examine differences between social classes on item level. Since results from the gender studies have had some impact on item construction, a secondary aim was to compare the results of social classes with the results of females and males. For a group of 9 723 test-takers in spring 2002, who had finished upper secondary school the same year, differential item functioning (DIF) analyses were performed by means of the Mantel-Haenszel method. The DIF-items were classified into categories A (negligible), B (intermediate) and C (large) according to the severity of DIF. The test in 2002 consisted of 122 multiple-choice items, divided into five sub-tests. The outcome of the Mantel-Haenszel analysis for social groups was that 23 items turned out to have DIF, one of which in the B-category, and 22 in the A-category. For gender 91 items turned out to have DIF, 4 in category C, 17 in category B, and 70 in category A. The conclusion was that there are very few items which function differently for social groups. Therefore, in order to find any pattern among DIFitems favouring social group I, an enormous amount of items would have to be analysed.

Place, publisher, year, edition, pages
Umeå: Institutionen för beteendevetenskapliga mätningar, Umeå , 2005. , 15 p.
BVM / Institutionen för beteendevetenskapliga mätningar, Umeå universitet, ISSN 1652-7313 ; 11
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URN: urn:nbn:se:umu:diva-14411OAI: diva2:154082
Available from: 2007-05-31 Created: 2007-05-31 Last updated: 2012-04-20Bibliographically approved

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BVM nr.11(113 kB)182 downloads
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