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: 2008

NAEP Technical DocumentationNumber of Items in Scales as Defined Before and After Scaling, Reading Long-Term Trend Assessment, by Age: 2008

Number of items in scales1 as defined before scaling, reading long-term trend assessment, by age: 2008
Age Total
1 Single overall scale.
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2008 Reading Long-Term Trend Assessment.
9 88
13 106
17 103

Number of items in scales1 as defined after scaling,  reading long-term trend assessment, by age: 2008
Age Total
1 Single overall scale.
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2008 Reading Long-Term Trend Assessment.
9 88
13 105
17 103
Last updated 08 July 2009 (JL)