M+P

• Evaluation - M+P

  • Quasi experiment
  • Research techniques
  • The sample
• Evaluation - M+P Quasi experiment

  • The IV was an existing condition of the individual - casual conclusions are not justified
  • Raine points out the findings don't show violent behaviour is determined by biology ALONE
  • Suggests that physical, cultural, situational factors play important roles in predisposition to violence
• Evaluation - M+P Research Techniques

  • Data was collected using PET scans
  • Have allowed researchers to study the brain in a way not possible until recently - study detailed regions of the brains
• Evaluation - M+P The Sample

  • The murderers were not typical of all violent individuals
  • Findings don't show that all violent offenders have such brain dysfunctions - the study can only draw conclusions about an offender with a mental impairment and murdered. Many other violent crimes do not involve murder