. Author manuscript; available in PMC: 2013 Jun 18.

Published in final edited form as: J Fam Psychol. 2009 Oct;23(5):646–660. doi: 10.1037/a0016091

Table 5.

Contributions of parents' personality to covariance between observed marital quality and parents' negativity and warmth.

	Covariance between observed marital conflict and parent negativity

	Portion of covariance explained by latent genetic and nonshared environmental factors related to personality			Portion of covariance independent of personality			Total Covariance

	a_med	e_med	r_med	a_res	e_res	r_res	r_tot
Personality characteristics: sociability, aggression	.09	.00	.09	.06	.19	.25	.34

	Covariance between observed marital warmth and parent warmth

	Portion of covariance explained by latent genetic and nonshared environmental factors related to personality			Portion of covariance independent of personality			Total Covariance

	a_med	e_med	r_med	a_med	e_med	r_med	a_med
Personality characteristics: sociability, anxiety	.10	.03	.13	.01	.32	.33	.46

Legend: “r_tot”denotes the total association between marital quality and parenting, while “r_med” describes the portion of this association that is explained by the twins' personality characteristics. Similarly “a_med” and “e_med” respectively describe the portion of r_med that is explained by genetic and nonshared environmental factors. “r_res” is the portion of the association between marital quality and parenting that is independent of the twins' personal characteristics. “a_res” and “e_res” respectively describe genetic and environment contributions to r_res.