Using a mixture IRT model to understand English learner performance on large-scale assessments

The purpose of this study was to determine whether an eighth grade state-level math assessment contained items that function differentially (DIF) for English Learner students (EL) as compared to English Only students (EO) and if so, what factors might have caused DIF. To determine this, Differential...

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Bibliographic Details
Main Author: Shea, Christine A
Language:ENG
Published: ScholarWorks@UMass Amherst 2013
Subjects:
Online Access:https://scholarworks.umass.edu/dissertations/AAI3603151