A third indicator of the genetic rule-breaking factor, telling lies, exhibited weaker heritability and comparable convergence with the shared environmental common factor. Notably, this result converges with the findings of Barker et al,28 who reported a shared environmental contribution to deceptive but not aggressive behaviors. A third indicator of the genetic overt aggression factor, used weapon, also exhibited weak heritability and only slightly weaker convergence with the genetic rule-breaking factor. These 2 criteria may be points of intersection between the rule-breaking and covert delinquency factors and the overt aggression and rule-breaking factors, respectively. The cleanest indicators of the shared environmental covert delinquency factor were criteria reflecting fire setting, property destruction, and hurting animals because they loaded prominently on the shared environmental factor and weakly on either genetic factor. A fourth indicator of the nonshared covert delinquency factor, stealing, modestly cross-loaded on the genetic rule-breaking factor. This criterion represents a further point of intersection (with telling lies) between the genetic rule-breaking factor and the shared environmental covert delinquency factor.
