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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, Reading Combined National and State Main Assessment: 2005

NAEP Technical DocumentationConditional correlations and variances of the subscales, by grade, reading combined national and state main assessment: 2005

Grade	Scale	Reading for literary experience	Reading to gain information	Reading to perform a task
4	Reading for literary experience	§	§	†
	Reading to gain information	0.84	§	†
	Reading to perform a task	†	†	†
	Residual variance	0.54	0.51	†
8	Reading for literary experience	§	§	§
	Reading to gain information	0.77	§	§
	Reading to perform a task	0.69	0.81	§
	Residual variance	0.54	0.46	0.46
12	Reading for literary experience	§	§	§
	Reading to gain information	0.83	§	§
	Reading to perform a task	0.73	0.68	§
	Residual variance	0.41	0.43	0.47
† Not applicable; category does not exist. § 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 Reading Assessment.

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