Researchers investigated the concordance rates of Major Depressive Disorder (MDD) using a registry of 4,800 twin pairs. Their statistical analysis estimated that the heritability of MDD is between 35% and 45%.
With reference to the findings described above, explain what these results suggest about the relative influence of nature (genetic factors) and nurture (environmental factors) on the development of Major Depressive Disorder (MDD).
Practise AQA A Level Psychology Nature-nurture debate with exam-style questions for A Level Psychology. 16 questions, matched to the AQA A Level Psychology (7182) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
