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

NAEP Technical DocumentationNumber of items in scales as defined before scaling, by grade, mathematics combined national and state main assessment: 2005
Grade	Total	Number sense, properties, and operations scale	Measurement scale	Geometry and spatial sense scale	Data analysis, statistics, and probability scale	Algebra and functions scale
4	168	70	34	24	18	22
8	177	47	28	37	24	41
12	180	31	60¹	60¹	35	54
¹ The "Measurement" and "Geometry and Spatial Sense" scales were combined before scaling. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2005 Mathematics Assessment.

Number of items in scales as defined after scaling, by grade, mathematics combined national and state main assessment: 2005
Grade	Total	Number sense, properties, and operations scale	Measurement scale	Geometry and spatial sense scale	Data analysis, statistics, and probability scale	Algebra and functions scale
4	168	70	34	24	18	22
8	177	47	28	37	24	41
12	180	31	60¹	60¹	35	54
¹ The "Measurement" and "Geometry and Spatial Sense" scales were combined before scaling. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2005 Mathematics Assessment.

Last updated 19 February 2009 (GF)