Genetic and environmental influences on victims, bullies and bully-victims in childhood

Harriet A Ball, Louise Arseneault, Alan Taylor, Barbara Maughan, Avshalom Caspi, Terrie E Moffitt

Research output: Contribution to journalArticle (Academic Journal)peer-review

Abstract

BACKGROUND: Three groups of children are involved in bullying: victims, bullies and bully-victims who are both bullies and victims of bullying. Understanding the origins of these groups is important since they have elevated emotional and behavioural problems, especially the bully-victims. No research has examined the genetic and environmental influences on these social roles.

METHOD: Mother and teacher reports of victimisation and bullying were collected in a nationally representative cohort of 1,116 families with 10-year-old twins. Model-fitting was used to examine the relative influence of genetics and environments on the liability to be a victim, a bully or a bully-victim.

RESULTS: Twelve percent of children were severely bullied as victims, 13% were frequent bullies, and 2.5% were heavily involved as bully-victims. Genetic factors accounted for 73% of the variation in victimisation and 61% of the variation in bullying, with the remainder explained by environmental factors not shared between the twins. The covariation between victim and bully roles (r = .25), which characterises bully-victims, was accounted for by genetic factors only. Some genetic factors influenced both victimisation and bullying, although there were also genetic factors specific to each social role.

CONCLUSIONS: Children's genetic endowments, as well as their surrounding environments, influence which children become victims, bullies and bully-victims. Future research identifying mediating characteristics that link the genetic and environmental influences to these social roles could provide targets for intervention.

Original languageEnglish
Pages (from-to)104-12
Number of pages9
JournalJournal of Child Psychology and Psychiatry
Volume49
Issue number1
DOIs
Publication statusPublished - Jan 2008

Keywords

  • Analysis of Variance
  • Child
  • Child, Preschool
  • Environment
  • Female
  • Follow-Up Studies
  • Genetics, Behavioral
  • Humans
  • Male
  • Social Behavior

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