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Background . Beginning in 2009, the National Assessment of Educational Progress (NAEP) reading assessment will include items designed to measure students' vocabulary proficiency in a reading context. These items are called ?Meaning Vocabulary' (MV) items. The purpose was to investigate if the cons
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1. Examining the factor structure of a prototype NAEP Reading Comprehension test: Applying confirmatory factor analytic techniques to establish construct equivalence Enis Dogan (NAEP ESSI at AIR) Steven J. Osterlind (University of Missouri ) Howard T. Everson (Fordham University) Bill Tirre (NCES)