Table 4.

Genetic and Environmental Correlations Between Child Psychopathy Scale Factors and Reactive and Proactive Aggression, Caregiver and Twin Self-Reports

	Caregiver reports		Twin self-reports
	Genetic correlation (rg)	Nonshared environmental correlation (re)	Genetic correlation (rg)	Nonshared environmental correlation (re)
Callous & disinhibited—reactive aggression	.49 (.06–.81)	.47 (.38–.55)	.59 (.42–.73)	.37 (.28–.45)
Callous & disinhibited—proactive aggression	.41 (.00–.72)	.37 (.27–.47)	.76 (.58–.94)	.30 (.21–.39)
Manipulative & deceitful—reactive aggression	.57 (.17–1.0)	.34 (.23–.43)	.57 (.39–.74)	.29 (.20–.38)
Manipulative & deceitful—proactive aggression	.35 (−.20–.62)	.41 (.31–.50)	.81 (.64–.98)	.29 (.20–.38)

Note. The 95% confidence intervals are within parentheses.