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NAEP Analysis and Scaling → Estimation of NAEP Score Scales → NAEP Scales → Correlations Among NAEP Subject Area Subscales → Marginal Correlations of the Subscales, by Grade, Science National Main Assessment (Accommodations Permitted [R3]): 2000

NAEP Technical DocumentationMarginal correlations of the subscales, by grade, science national main assessment (accommodations permitted [R3]): 2000

Grade	Scale	Physical science	Earth science	Life science
4	Physical science	§	§	§
	Earth science	0.88	§	§
	Life science	0.88	0.89	§
8	Physical science	§	§	§
	Earth science	0.91	§	§
	Life science	0.91	0.91	§
12	Physical science	§	§	§
	Earth science	0.90	§	§
	Life science	0.90	0.90	§
§This is a lower triangular symmetrical table. NOTE: Values in the table are estimates conditioned on the set of principal components included in the models used to estimate group score distributions. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2000 Science Assessment.

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