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NAEP Analysis and Scaling → Estimation of NAEP Score Scales → NAEP Scales → Number of Items in Each Subject Area Scale → Number of Items in Scales as Defined Before and After Scaling, Mathematics Long-Term Trend Assessment, by Age: 2012
NAEP Technical DocumentationNumber of items in scales as defined before scaling, mathematics long-term trend assessment, by age: 2012
Age Total
NOTE: Single overall scale.
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2012 Mathematics Long-Term Trend Assessment.
9 136
13 157
17 157

Number of items in scales as defined after scaling, mathematics long-term trend assessment, by age: 2012
Age Total
NOTE: Single overall scale.
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2012 Mathematics Long-Term Trend Assessment.
9 136
13 153
17 155

Last updated 18 September 2013 (JL)