title: Bullied by siblings: association with peer victimisation and behaviour problems in Israeli lower secondary school children.
abstract: BACKGROUND
  The association of bullying victimisation by siblings with a) involvement in bullying at school and b) behaviour problems among lower secondary school children in Israel was investigated.
  
  
  METHODS
  Self-report questionnaires of sibling victimisation, peer bullying experiences and behaviour problems were completed by 921 pupils aged 12-15 (mean age 13.7 years).
  
  
  RESULTS
  Of the sample, 16.2% were directly bullied by their siblings at home and 11.9% were direct victims of bullying by peers at school every week. More than half of victims of bullying by siblings (50.7%) were also involved in bullying behaviour at school compared to only 12.4% of those not victimised by siblings, indicating a strong link between intrafamilial and extrafamilial peer relationships. Children with poor sibling and peer relationships were at a highly increased risk for behaviour problems. Ethnic (Israeli Jewish vs. Arab) and sex differences were small compared to the effects of sibling relationship on behaviour problems.
  
  
  CONCLUSIONS
  Intervention strategies directed at reducing bullying in school should take into account pupils' experiences of victimisation by siblings at home.
authors.affiliation: University of Bristol, Division of Child Health, ALSPAC, UK. Dieter.Wolke@bristol.ac.uk, Dieter.Wolke@jacobsfoundation.org
authors.forename: Dieter
authors.initials: D
authors.lastname: Wolke
authors.forename: Muthanna M
authors.initials: MM
authors.lastname: Samara
mesh_terms: D000293:Adolescent; D000374:Aggression; D002648:Child; D019955:Conduct Disorder / Q000453:epidemiology / Q000523:psychology*; D019548:Crime Victims; D005260:Female; D006801:Humans; D007557:Israel / Q000453:epidemiology; D008297:Male; D010379:Peer Group; D012574:Schools; D012647:Self-Assessment; D012801:Sibling Relations