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NAEP Technical Documentation 

Interrater agreement ranges, mathematics long-term trend assessment, by number of items: 2008

Assessment	Number of distinct Items	Number of items with an agreement range of 90% or above
NOTE: No items showed an agreement range below 90 percent. Individual parts of multi-part items are treated as distinct items. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2008 Mathematics Long-Term Trend Assessment.
Mathematics long-term trend	179	179

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