NAEP Analysis and Scaling - Conditional Correlations and Variances of the Subscales, by Grade, Mathematics Combined National and State Main Assessment: 2005

NAEP Analysis and Scaling → Estimation of NAEP Score Scales → NAEP Scales → Correlations Among NAEP Subject Area Subscales → Conditional Correlations and Variances of the Subscales, by Grade, Mathematics Combined National and State Main Assessment: 2005

NAEP Technical DocumentationConditional correlations and variances of the subscales, grades 4 and 8 mathematics combined national and state main assessment: 2005
Grade	Scale	Number sense, properties, and operations	Measurement	Geometry and spatial sense	Data analysis, statistics, and probability	Algebra and functions
4	Number sense, properties, and operations	§	§	§	§	§
	Measurement	0.94	§	§	§	§
	Geometry and spatial sense	0.87	0.89	§	§	§
	Data analysis, statistics, and probability	0.92	0.89	0.86	§	§
	Algebra and functions	0.94	0.91	0.89	0.92	§
	Residual variance	0.55	0.57	0.59	0.55	0.58
8	Number sense, properties, and operations	§	§	§	§	§
	Measurement	0.92	§	§	§	§
	Geometry and spatial sense	0.84	0.92	§	§	§
	Data analysis, statistics, and probability	0.92	0.91	0.86	§	§
	Algebra and functions	0.94	0.91	0.89	0.92	§
	Residual variance	0.42	0.44	0.50	0.45	0.45
§ These cells do not display data because this is a correlation matrix. Information is shown for the lower triangle only to eliminate redundant information. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2005 Mathematics Assessment.

Conditional correlations and variances of the subscales, grade 12 mathematics national main assessment: 2005
Grade	Scale	Number sense, properties, and operations	Measurement & geometry, and spatial sense¹	Data analysis, statistics, and probability	Algebra and functions
12	Number sense, properties, and operations	§	§	§	§
	Measurement & geometry and spatial sense¹	0.89	§	§	§
	Data analysis, statistics, and probability	0.93	0.85	§	§
	Algebra and functions	0.93	0.94	0.89	§
	Residual variance	0.27	0.29	0.32	0.26
§ These cells do not display data because this is a correlation matrix. Information is shown for the lower triangle only to eliminate redundant information. ¹ At grade 12 only, the "measurement" and "geometry and spatial sense" subscales were combined for 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 21 July 2009 (JL)