Found prevalence rates of Sz were 10x higher among genetic relatives rather than adopted relatives of Sz's - It suggested that genetics play a greater role than environmental factors.
1 of 5
Twin - Gottesman & Shields
They performed a meta-analysis - MZ twins concordance rate= 46% - DZ twins concordance rate= 14%
2 of 5
Twin - Rosenthal
Studied 16 pairs of MZ twins who had been reared apart; this allowed them to look at the relative contributions in both heredity and environment - He found that in 10 pairs the second twin also went on to develop Sz - The concordance rate= 62.5%
3 of 5
Adoption - Kety
They considered adults who had been adopted at an early age - Half had been diagnosed as suffering from Sz - The 2 groups matched on variables such as sex and age - Rate of Sz in biological relatives of those with Sz (13%) without (2%)
4 of 5
dhghfg
thdghgshr
5 of 5
Other cards in this set
Card 2
Front
They performed a meta-analysis - MZ twins concordance rate= 46% - DZ twins concordance rate= 14%
Back
Twin - Gottesman & Shields
Card 3
Front
Studied 16 pairs of MZ twins who had been reared apart; this allowed them to look at the relative contributions in both heredity and environment - He found that in 10 pairs the second twin also went on to develop Sz - The concordance rate= 62.5%
Back
Card 4
Front
They considered adults who had been adopted at an early age - Half had been diagnosed as suffering from Sz - The 2 groups matched on variables such as sex and age - Rate of Sz in biological relatives of those with Sz (13%) without (2%)
Comments
No comments have yet been made