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Braun, Henry; Zhang, Jinming; Vezzu, Sailesh – Educational Evaluation and Policy Analysis, 2010
This article investigates plausible explanations for the observed heterogeneity among jurisdictions in the exclusion rates of students with disabilities and English language learners in administrations of the National Assessment of Educational Progress (NAEP). It also examines the operating characteristics of a particular class of methods, called…
Descriptors: Statistical Bias, National Competency Tests, Reports, Test Results
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Braun, Henry; Zhang, Jinming; Vezzu, Sailesh – ETS Research Report Series, 2008
At present, although the percentages of students with disabilities (SDs) and/or students who are English language learners (ELL) excluded from a NAEP administration are reported, no statistical adjustment is made for these excluded students in the calculation of NAEP results. However, the exclusion rates for both SD and ELL students vary…
Descriptors: Research Methodology, Computation, Disabilities, English Language Learners
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Braun, Henry; Qian, Jiahe – ETS Research Report Series, 2008
This report describes the derivation and evaluation of a method for comparing the performance standards for public school students set by different states. It is based on an approach proposed by McLaughlin and associates, which constituted an innovative attempt to resolve the confusion and concern that occurs when very different proportions of…
Descriptors: State Standards, Comparative Analysis, Public Schools, National Competency Tests