NAEP Analysis and Scaling - Number of Items in Scales as Defined Before and After Scaling, Reading Long-Term Trend Assessments, by Age: 2012

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, Reading Long-Term Trend Assessment, by Age: 2012

NAEP Technical DocumentationNumber of items in scales as defined before scaling, reading long-term trend assessment, by age: 2012
Age	Total
NOTE: A single overall scale was used. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2012 Reading Long-Term Trend Assessment.
9	88
13	106
17	103

Number of items in scales as defined after scaling, reading long-term trend assessment, by age: 2012
Age	Total
NOTE: A single overall scale was used. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2012 Reading Long-Term Trend Assessment.
9	88
13	105
17	103

Last updated 13 November 2013 (JL)