Table II.

Genetic and environmental stability of stress variables across waves

Bivariate Decomposition	rA	rE	Biv A	Biv E	Pheno r
Age 23 Dependent-Age 29 Dependent	.94* [.15]	.07 [.09]	.28* [.06]	.05 [.06]	.32* [.05]
Age 23 Dependent LT-Age 29 Dependent LT	.78* [.22]	−.03 [.17]	.29* [.09]	−.02 [.10]	.28* [.08]
Age 23 Independent-Age 29 Independent	1.0 [.87]	.20 [.13]	.05 [.07]	.17 [.11]	.22* [.08]
Age 23 Independent LT-Age 29 Independent LT	.55* [.17]	.01 [.18]	.29* [.09]	.00 [.08]	.29* [.06]

Shared environment (C) correlations were not estimated in decompositions but these same decompositions without dropping all other C parameters are reproduced in Supplemental Table SVI. rA=genetic correlation; rE=nonshared environmental correlation; BivA= bivariate heritability—the phenotypic correlation explained by the genetic correlation; Biv E= bivariate nonshared environmentality—the phenotypic correlation explained by the nonshared environmental correlation; 23 and 29 indicate mean ages of assessment; LT=lifetime stress variable. For each pair of variables, Biv A + Biv E equals the model phenotypic correlations, which are very close to those in Supplemental Table SIII (significance of Pheno r determined by Table III for consistency).

^*p< 0083, boldface p< .05; determined with chi-square difference tests dropping the relevant Cholesky cross-paths, but bootstrapped standard errors shown in brackets for reference. When standard errors disagree with chi-square difference tests, we deemed significance from chi-square difference tests.