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Maij-de Meij, Annette M.; Kelderman, Henk; van der Flier, Henk – Multivariate Behavioral Research, 2010
Usually, methods for detection of differential item functioning (DIF) compare the functioning of items across manifest groups. However, the manifest groups with respect to which the items function differentially may not necessarily coincide with the true source of the bias. It is expected that DIF detection under a model that includes a latent DIF…
Descriptors: Test Bias, Item Response Theory, Models, Aptitude Tests
Wijnstra, Johan M. – 1984
This paper presents preliminary results regarding the predictive validity of learning potential tests administered in an exploratory study in Rotterdam (Holland) concerning the referral of minority students to special education. The central question of the study was why some students of Surinamese, Turkish, and Moroccan origin were placed in…
Descriptors: Aptitude Tests, Cultural Differences, Elementary Education, Ethnic Groups