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NAEP Analysis and Scaling → Estimation of NAEP Score Scales → NAEP Scales → Correlations Among NAEP Subject Area Subscales → Average Marginal Correlations at Select Percentiles for the Mathematics Subscales Across 52 Jurisdictions, Grade 8 Mathematics State Assessment, by Subscale: 2015

NAEP Technical DocumentationAverage Marginal Correlations at Select Percentiles for the Mathematics Subscales Across 52 Jurisdictions, Grade 8 Mathematics State Assessment, by Subscale: 2015

Average marginal correlations at select percentiles for the mathematics subscales across 52 jurisdictions, grade 8 mathematics state assessment, by subscale: 2015
Subscale	Percentile	Number properties and operations	Measurement	Geometry	Data analysis, statistics, and probability	Algebra
Number properties and operations	10th percentile	1.00	§	§	§	§
	50th percentile	1.00	§	§	§	§
	90th percentile	1.00	§	§	§	§
Measurement	10th percentile	.80	1.00	§	§	§
	50th percentile	.82	1.00	§	§	§
	90th percentile	.85	1.00	§	§	§
Geometry	10th percentile	.77	.76	1.00	§	§
	50th percentile	.81	.80	1.00	§	§
	90th percentile	.85	.83	1.00	§	§
Data analysis, statistics, and probability	10th percentile	.78	.75	.74	1.00	§
	50th percentile	.82	.78	.78	1.00	§
	90th percentile	.85	.83	.81	1.00	§
Algebra	10th percentile	.84	.80	.79	.80	1.00
	50th percentile	.86	.84	.83	.83	1.00
	90th percentile	.89	.87	.86	.86	1.00
§ 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), 2015 Mathematics Assessment.

Last updated 20 January 2022 (SK)

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