The Validity of Item Bias Techniques with Math Word Problems

Gail Ironson, Susan Homan, Ruth Willis, Barbara Signer

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

Item bias research has compared methods empiri cally using both computer simulation with known amounts of bias and real data with unknown amounts of bias. This study extends previous research by “planting” biased items in the realistic context of math word problems. “Biased” items are those in which the reading level is too high for a group of stu dents so that the items are unable to assess the stu dents’ math knowledge. Of the three methods assessed (Angoff's transformed difficulty, Camilli's full chi- square, and Linn and Harnisch's item response theory, IRT, approach), only the IRT approach performed well. Removing the biased items had a minor effect on the validity for the minority group.

Original languageEnglish (US)
Pages (from-to)391-396
Number of pages6
JournalApplied Psychological Measurement
Volume8
Issue number4
DOIs
StatePublished - Sep 1984
Externally publishedYes

ASJC Scopus subject areas

  • Social Sciences (miscellaneous)
  • Psychology (miscellaneous)

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