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NOTE: The arrow heads point to samples for which assessment results were already in the NAEP reporting metric. Starting in 2002 accommodations were offered for all main NAEP assessments; therefore, distinctions made between accommodated and non-accommodated samples were no longer needed. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2006 U.S. History Assessment. |