Table 4. Genetic and Environmental Effects for the Latent Factor, Common Effects, and Method-Specific Effects for the Questionnaire and the Interview.

					Questionnaire				Interview
Personality Disorder	Latent Factor		Common Effects		Method Specific		Total		Method Specific		Total
	a2	e2	a2	e2	a2	e2	a2	e2	a2	e2	a2	e2
	Antisocial	.69	.31	.31	.14	.15	.40	.46	.54	.00	.55	.31	.69
	Borderline	.67	.33	.32	.16	.14	.38	.46	.54	.00	.52	.32	.68
Histrionic	.63	.37	.26	.15	.20	.40	.46	.55	.00	.59	.26	.74
Narcissistic	.71	.29	.23	.09	.18	.49	.41	.58	.00	.67	.23	.76

Notes. a²: Squared genetic effects = heritability.

e²: Squared individual-specific environmental effects = % variance resulting from these environmental effects.