Table IV.

Genetic and environmental correlations between stress variables and Common EF

Stress variable	With 23 Common EF					With 29 Common EF
	rA	rE	Biv A	Biv E	Pheno r	rA	rE	Biv A	Biv E	Pheno r
1. Age 23 Dependent	−.29 [.13]	.33 [.34]	−.17 [.07]	.08. [05]	−.09 [.06]	−.15 [.16]	.05 [.26]	−.09 [.09]	.02 [.07]	−.07 [.07]
2. Age 23 Dependent Lifetime	−.28 [.17]	.07 [.50]	−.17 [.10]	.02 [.08]	−.16 [.08]	−.16 [.22]	.27 [.34]	−.10 [.12]	.08 [.09]	−.02 [.09]
3. Age 29 Dependent	−.21 [.19]	−.15 [.41]	−.09 [.08]	−.04 [.06]	−.13 [.06]	−.38 [.24]	.31 [.24]	−.16 [.09]	.11 [.07]	−.06 [.07]
4. Age 29 Dependent Lifetime	.02 [.17]	.16 [.44]	.01 [.08]	.04 [.07]	.05 [.07]	−.03 [.21]	.45 [.26]	−.01 [.10]	.14 [.08]	.13 [.07]
5. Age 23 Independent	−.58 [.47]	.08 [.44]	−.04 [.08]	.02 [.07]	−.01 [.07]	.19 [.37]	−.15 [.30]	.03 [.09]	−.06 [.09]	−.02 [.08]
6. Age 23 Independent Lifetime	−.21 [.10]	.55 [.31]	−.16 [.08]	.11 [.05]	−.05 [.06]	−.10 [.13]	−.10 [.37]	−.07 [.10]	−.02 [.07]	−.10 [.07]
7. Age 29 Independent	−.14 [.26]	.18 [.45]	−.07 [.10]	.05 [.08]	−.02 [.08]	−.02 [.30]	.02 [.35]	−.01 [.12]	.01 [.10]	.00 [.09]
8. Age 29 Independent Lifetime	.06 [.14]	.13 [.47]	.04 [.09]	.03 [.07]	.07 [.07]	.05 [.17]	.17 [.35]	.03 [.10]	.05 [.08]	.08 [.08]

Estimates are derived from Cholesky decompositions. Shared environmental (C) correlations were not estimated because of zero or near-zero C variances for executive functions (EF) and stress. Models included all EF latent variables, but only results with Common EF are shown here. rA= genetic correlation; rE= nonshared environmental correlation; Biv A= bivariate heritability—the phenotypic correlation explained by the genetic correlation; Biv E=bivariate nonshared environmentality—the phenotypic correlation explained by the nonshared environmental correlation. For each pair of variables, Biv A + Biv E equals the model phenotypic correlations, Pheno r, which are very close to those in Table III (significance of Pheno r determined by Table III for consistency). *p<.0083, boldface type indicates p<.05; determined with chi-square difference tests dropping the relevant Cholesky cross-paths but bootstrapped standard errors are shown in brackets for reference. When standard errors disagree with chi-square difference tests, we deemed significance from chi-square difference tests.