genetic factors

Question 1

twin studies

Answer 1

if aggression s due to genetics there is an increased concordance rate in mz twins due to genetic similarity

cocoro- found that 50% mz 19% dz shared physical aggressive traits

Question 2

adoption studies

Answer 2

similarities in aggression between adoptive and biological parents - genetic
dutching and mediniah
- 14,000 adopteesn in denmark
- signigificant amount of adopted boys who had convictions in violence also had fathers with convictions in violence

Question 3

the role of maoa

Answer 3

regulates the metabolism of serotionin
the MAOA L gene is associated with aggression

brunner et al
- 28 males with serious convictions such as rape had the MAOA L gene

Question 4

strengths

Answer 4

twin studies
- large sample -qualitiative data
increases the validity

Question 5

limitations

Answer 5

reductionist
- oversimplifies it to bio factors
- however genetic factors may interact with the environment

multi gene
- vassos conducted a meta analysis and couldnt find one singluar gene for aggression

determinist
- focuses on the idea that behaviour cannot be controlled due to the gene