NAEP Analysis and Scaling → Estimation of NAEP Score Scales → NAEP Scales → Correlations Among NAEP Subject Area Subscales → Marginal Correlations of the Subscales, Mathematics Combined National and State Main Assessment, by Grade: 2009

NAEP Technical DocumentationMarginal correlations of the subscales, mathematics combined national and state main assessment, by grade: 2009

Grade	Scale	Number sense, properties, and operations	Measurement	Geometry	Data analysis, statistics, and probability	Algebra
§ This is a lower triangular symmetrical table. 1 At grade 12 only, the "measurement" and "geometry" subscales were combined for scaling. NOTE: Table values were obtained by computing a separate Pearson correlation coefficient for each plausible value, computing Fisher’s z transformation for each value, computing the average of the transformed values, and computing the inverse transformation. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics Assessment.
4	Numbers sense, properties, and operations	§	§	§	§	§
	Measurement	0.88	§	§	§	§
	Geometry	0.81	0.79	§	§	§
	Data analysis, statistics, and probability	0.85	0.82	0.77	§	§
	Algebra	0.88	0.84	0.78	0.82	§
8	Number sense, properties, and operations	§	§	§	§	§
	Measurement	0.86	§	§	§	§
	Geometry	0.84	0.84	§	§	§
	Data analysis, statistics, and probability	0.85	0.83	0.82	§	§
	Algebra	0.89	0.87	0.85	0.86	§
121	Number sense, properties, and operations	§	§		§	§
	Measurement and geometry	0.92	§		§	§
	Data analysis, statistics, and probability	0.92	0.92		§	§
	Algebra	0.92	0.95		0.92	§

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