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Browsing Education - Seattle by Subject "DIF; ELLs; Logistic Regression; Science Tests; SIBTest; Testlets"
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Differential Item Functioning (DIF) among Spanish-Speaking English Language Learners (ELLs) in State Science Tests
(2013-07-25)Psychometricians and test developers evaluate standardized tests for potential bias against groups of test-takers by using differential item functioning (DIF). English language learners (ELLs) are a diverse group of ...