NAEP Analysis and Scaling - Number of Items in Scales as Defined Before and After Scaling, by Grade, Science Assessment: 2000

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 Assessment: 2000

NAEP Technical DocumentationNumber of items in scales as defined before scaling, by grade, science assessment: 2000
Grade	Total	Physical science	Earth science	Life science
4	142	46	46	50
8	197	63	64	70
12	194	62	64	68
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2000 Science Assessment.

Number of items in scales as defined after scaling, by grade, science assessment: 2000
Grade	Total	Physical science	Earth science	Life science
4	142	46	46	50
8	197	63	64	70
12	192	62	64	66
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2000 Science Assessment.

Last updated 15 July 2008 (RF)