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NAEP Technical DocumentationMarginal correlations of the subscales, mathematics combined national and state assessments, by grade: 2011

Grade	Scale	Number sense, properties, and operations	Measurement	Geometry and spatial sense	Data analysis, statistics, and probability	Algebra and functions
§ These cells do not display data because this is a correlation matrix. Information is shown for the lower triangle only to eliminate redundant information. NOTE: For 2011, grade 12 was not assessed. Tabled values were obtained by computing a separate 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), 2011 Mathematics Assessment
4	Number sense, properties, and operations	§	§	§	§	§
	Measurement	.89	§	§	§	§
	Geometry	.82	.82	§	§	§
	Data analysis, statistics, and probability	.87	.85	.80	§	§
	Algebra	.89	.86	.80	.85	§
8	Number sense, properties, and operations	§	§	§	§	§
	Measurement	.85	§	§	§	§
	Geometry	.83	.83	§	§	§
	Data analysis, statistics, and probability	.84	.83	.82	§	§
	Algebra	.88	.87	.85	.86	§

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