Adoption studies can untangle links between the contribution of the environment and heredity in aggression
+ve correlation between...
1) Aggression in adopted children / aggression in biological parents = Genetic link implied
2) Aggression in adopted children / aggression in rearing family = Environmental link implied
HUTCHINGS & MEDNICK
- Study of over 14,000 adoptions in Denmark
- Significant number of adopted boys with criminal convictions had biological parents (mainly fathers) with criminal convictions
- Gives evidence for a genetic link
Comments
No comments have yet been made