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Liang, Longjuan2
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Sinharay, Sandip; Dorans, Neil J.; Liang, Longjuan – Educational Testing Service, 2009
To ensure fairness, it is important to better understand the relationship of language proficiency to standard psychometric analysis procedures. This paper examines how results of differential item functioning (DIF) analysis are affected by an increase in the proportion of examinees who report that English is not their first language in the…
Descriptors: Test Bias, Language Proficiency, English (Second Language), Measurement
Liang, Longjuan; Dorans, Neil J.; Sinharay, Sandip – Educational Testing Service, 2009
To ensure fairness, it is important to better understand the relationship of language proficiency with the standard procedures of psychometric analysis. This paper examines how equating results are affected by an increase in the proportion of examinees who report that English is not their first language, using the analysis samples for a…
Descriptors: Equated Scores, English (Second Language), Reading Tests, Mathematics Tests