NAEP Analysis and Scaling - Number of Items in Scales as Defined Before and After Scaling, Science Combined National and State Assessments, by Scale and Grade: 2011

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, Science Combined National and State Assessments, by Scale and Grade: 2011

NAEP Technical DocumentationNumber of items in scales as defined before scaling, science combined national and state assessments, by scale and grade: 2011
Grade	Total	Physical science	Earth and space sciences	Life science
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2011 Science Assessment.
8	166	51	67	48

Number of items in scales as defined after scaling, science national combined national and state assessments, by scale and grade: 2011
Grade	Total	Physical science	Earth and space sciences	Life science
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2011 Science Assessment.
8	161	46	67	48

Number of items in combined univariate scale as defined after scaling, science combined national and state assessments, by scale and grade: 2011
Grade	Total	One Scale¹
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), 2011 Science Assessment.
8	161	161

Last updated 06 January 2016 (GF)