Twin Studies

Question 1

Why are twin studies relevant?

Answer 1

To compare genetically similar and identical
Behaviour identical is similar than non= genetic comp

Question 2

Concordance rate

Answer 2

Agreement exp %+ comp of MZ & DZ
100= all shared
0= none shared

Question 3

Concordance rate results

Answer 3

Higher for MZ than DZ = genetic cause
Mz reared apart = strong genetic link

Question 4

Twin studies investigate effect nature and nurture on behaviour

Answer 4

Nature=bio causes+inv nature of genes for behaviour
Nurture= enviro causes and upbringing effect on b

Question 5

Strength

Answer 5

+ easily see genetic comp, conc rate mz higher than DZ only diff no. Shared genes= factor to determine traits

Question 6

Weakness

Answer 6

• mz treated similarly than DZ. Enviro exp intertwined
  Shared ebvuri inf High conc= diff to discount and twin studies over estimate genetic influence