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. Author manuscript; available in PMC: 2009 Oct 16.
Published in final edited form as: J Exp Psychol Gen. 2008 May;137(2):201–225. doi: 10.1037/0096-3445.137.2.201

Figure 7.

Figure 7

Nested factors executive function model with WAIS-IQ. Task names are abbreviated. Numbers above the ACEs for the latent variables and WAIS-IQ are the percentages of those variables accounted for by genetic and environmental influences. Numbers occluding the double-headed arrows are correlation coefficients. Correlations for components with zero or near-zero variance were not estimated. The numbers occluding arrows are standardized factor loadings. Numbers under the lower ACEs are estimates for task-specific variances. Boldface type and solid lines indicate p < .05.