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Intergenerational transmission of psychopathy and mediation via psychosocial risk factors.

BACKGROUND
Intergenerational continuities in criminal behaviour have been well documented, but the familial nature of psychopathic personality is less well understood.


AIMS
To establish if there is an association between the psychopathic traits of a community sample of men and their offspring and whether psychosocial risk factors mediate this.


METHOD
Participants of the Cambridge Study in Delinquent Development (n = 478 dyads) were assessed for psychopathy using the PCL: SV. Multilevel regression models were used to investigate intergenerational continuity and mediation models examined indirect effects.


RESULTS
The fathers' psychopathy was transmitted to both sons and daughters. The transmission of Factor 1 scores was mediated via the fathers' employment problems. For male offspring, the Factor 2 scores were mediated via the fathers' drug use, accommodation and employment problems. For female offspring, Factor 2 scores were mediated via the fathers' employment problems.


CONCLUSIONS
Understanding of the specific role of certain psychosocial risk factors may be useful in developing preventive measures for the development of psychopathy.