NAEP Analysis and Scaling - Number of Items in Scales as Defined Before and After Scaling, by Grade, Science Combined National and State Main Assessment: 2005

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, by Grade, Science Combined National and State Main Assessment: 2005

NAEP Technical DocumentationNumber of items in scales as defined before scaling, by grade, science combined national and state main assessment: 2005
Grade	Total	Physical science	Earth science	Life science
4	152	45	54	53
8	224	67	70	87
12	205	77	70	58
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2005 Science Assessment.

Number of items in scales as defined after scaling, by grade, science combined national and state main assessment: 2005
Grade	Total	Physical science	Earth science	Life science
4	152	45	54	53
8	223	67	70	86
12	203	76	70	57
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2005 Science Assessment.

Last updated 19 February 2009 (GF)