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. Author manuscript; available in PMC: 2010 Mar 8.
Published in final edited form as: J Child Psychol Psychiatry. 2009 Feb 27;50(8):911–919. doi: 10.1111/j.1469-7610.2009.02074.x

Figure 1.

Figure 1

Expanded longitudinal model estimating genetic, shared environmental, nonshared environmental and identified shared environmental variance of Home Literacy Environment (HLE), for year 1, 2 and 3 Boston Naming Test (BNT). Note that only one twin’s pathways are displayed here for simplicity