Correlations between the genetic (A), shared environmental (C), and nonshared
environmental (E) variance components on Common EF and WM-Specific in midlife,
and general cognitive ability in midlife (Panel A) or young adulthood (Panel B).
Common EF and WM-Specific are not correlated, by definition. Circles and
ellipses represent latent variables, and rectangles represent measured
variables. Factor loadings and residual variance components for the individual
EF tasks are not displayed here, but were nearly identical to those displayed in
Figure 2. Significant factor loadings
and correlations are displayed with black text and black lines
(p < .05).