Article2002

Disentangling Sources of Differential Item Functioning in Multilanguage Assessments

87 citations0/0 files storedInternational Journal of Testing

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Psychometric Methodologies and Testing Multilingual Education and Policy Educational Assessment and Pedagogy

Abstract

This article describes and discusses strategies used in disentangling sources of differential item functioning (DIF) in multilanguage assessments where multiple factors are expected to be causing DIF. Three strategies are used for identifying adaptation and curricular differences as sources of DIF: (a) judgmental reviews by multiple bilingual translators of all items, (b) cross-validation of DIF in multiple groups, and (c) examination of the distribution of DIF items by topic. Twenty-seven percent of the mathematics DIF items and 37% of the science DIF items were interpreted to be due to adaptation-related differences based on judgmental reviews. Most of these interpretations were also supported by the cross-validation analyses. Clustering of DIF items by topic provided curricular differences as interpretation for DIF only for small portions of the DIF items, approximately 23% of the mathematics DIF items and 13% of the science DIF items.

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References

2012Applications of Item Response Theory To Practical Testing Problems 1990Detecting Differential Item Functioning Using Logistic Regression Procedures 1993Scaling Performance Assessments: Strategies for Managing Local Item Dependence 1999Identifying the Causes of DIF in Translated Verbal Items 1989Analysis of Differential Item Functioning in the NAEP History Assessment 1993Item and test characteristics that are associated with differential item functioning.1998Translation effects in international assessments 1981INTERACTIONS BETWEEN ITEM CONTENT AND GROUP MEMBERSHIP ON ACHIEVEMENT TEST ITEMS

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