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NAEP Technical DocumentationMarginal correlations of the subscales, economics national assessment, by grade: 2012

Grade	Scale	Market economy	National economy	International economy
§ 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: Table 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. Economics was assessed only at grade 12 in 2012. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2012 Economics Assessment.
12	Market economy	§	§	§
	National economy	.96	§	§
	International economy	.92	.91	§

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