Psychologists investigated the concordance rates of schizophrenia using a large sample of 3,500 twin pairs. Their statistical analysis estimated that the heritability of schizophrenia is between 40% and 60%.
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 schizophrenia.
16 exam-style questions on AQA A Level Psychology Nature-nurture debate. Each one has a worked solution and a mark scheme showing where the marks go.