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. Author manuscript; available in PMC: 2013 Dec 5.
Published in final edited form as: J Educ Psychol. 2011 Oct 15;104(3):10.1037/a0027646. doi: 10.1037/a0027646

Table 5. Genetic (rA), shared environmental (rC) and nonshared environmental (rE) correlations between mathematics (Math), word decoding (WD), and reading comprehension (RC) (95% CI in parentheses).

Math-WD Math-RC WD-RC
rA .50
(.45, .57)		 .76
(.71, .80)		 .66
(.60, .73)
rc 1.00
(1.00, 1.00)		 0.97
(.79, 1.00)		 .97
(.81, 1.00)
rE .30
(.21, .39)		 .71
(.61, .80)		 .54
(.42, .67)