adoption studies Flashcards
why are twin studies used in adoption studies?
twins share same environment so can’t determine what causes criminality. can separate these by using adoption studies
what are adoption studies?
comparing adopted children to their biological parents and to their adopted parents
what would support a genetic explanation in adoption studies?
if the adopted child’s behaviour is more like their birth parents behaviour, it supports genetic explanations
what is a case study example of adoption studies?
mednick et al
outline mednick et al’s study relating to adoption studies
examined data on over 14,0 0 0 adopted sons in Denmark from 1924-1947
what did mednick et al’s study find?
(adoption studies)
sons more likely to have a criminal record if their birth parent had a criminal record
what was the concordance rate of mednick et al’s study?
(adoption studies)
20%
what does mednick et al’s study support?
(adoption studies)
supports genetic explanation