Table 3.

Observed and Model-Predicted Correlations and Model Fit for Each Political-Attitude Phenotype, the Political-Attitude Composite, and the ICAR-16 Score

Variable	Parent–offspring correlations				Sibling correlations			m $\mu$	Fit
	Mother–biological	Father–biological	Mother–adoptive	Father–adoptive	Biological–biological	Adoptive–biological	Adoptive–adoptive	Father–mother	SRMR a	GFI b
Political orientation									.06	.97
Observed	.41	.48	.39	.36	.43	.12	.14	.69
Expected	.46	.48	.35	.37	.33	.23	.19	.69
Egalitarianism									.05	.97
Observed	.48	.57	.40	.34	.33	.20	.26	.68
Expected	.50	.51	.39	.39	.37	.26	.21	.68
Authoritarianism									.05	.97
Observed	.44	.49	.30	.22	.34	.02	.04	.59
Expected	.46	.45	.26	.24	.33	.14	.08	.60
Economic liberalism									.02	.98
Observed	.49	.47	.32	.30	.30	.12	.11	.65
Expected	.48	.46	.32	.30	.33	.18	.12	.65
Social liberalism									.04	.99
Observed	.65	.65	.37	.37	.48	.22	.26	.70
Expected	.63	.63	.38	.38	.53	.29	.19	.70
Retribution									.05	.94
Observed	.26	.26	.14	.20	~0	.08	~0	.30
Expected	.22	.24	.16	.18	.11	.06	.05	.30
Religiousness									.03	.97
Observed	.56	.61	.35	.36	.53	.22	.21	.70
Expected	.57	.60	.33	.37	.51	.30	.21	.70
Political-attitude composite									.04	.98
Observed	.65	.65	.47	.46	.46	.24	.21	.82
Expected	.64	.64	.46	.46	.49	.32	.23	.82
ICAR-16									.02	.99
Observed	.27	.31	−.03	.10	.27	.05	.07	.19
Expected	.24	.33	−.01	.08	.30	.06	.05	.19

Note: Expected correlations were predicted from a biometric model after fitting. For 95% confidence intervals for observed correlations, see Table S14 in the Supplemental Material. ICAR-16 = 16-item short form of the International Cognitive Ability Resource.

^aFor the standardized root-mean-square residual (SRMR), a value less than .08 is generally considered good fit (Hu & Bentler, 1999). ^bFor the goodness-of-fit index (GFI), a value of .95 or greater is generally considered good fit, and a value between .90 and .95 is generally considered acceptable fit (McDonald, 1999).