supporting research

• Ball et al


  1116 pairs of twins(10 years old).

  Asked mothers and teachers to fill out a behaviour checklist of each child.

  Concordance rates were 63% for MZ and 33% for DZ.

  61% of the variance of bullying behaviour was down to genetic influences.
• Supports the idea bullying behaviours are inhertiable
• more research is needed but likely that genes influence characteristics which dispose people to bullying