Core Study of Criminal Behaviour : Mednick et Al (1984)

Aim: to investigate the nature/nurture debate of criminal behaviour using an adoption study. 

Procedure : in Denmark,1400 adopted males born between 1924-1947 who were crimnals had their records compared with those of their biological parents and adoptive parents

Results : if bio and adoptive parents were convicted, adoptee was almost twice as likely to have a criminal record than those who's bio and adoptive…