AO1

• The interactionist approach considers a range of factors, including biological, psychological and social, which are involved in the development of schizophrenia
• Tienari et al investigated the combination of genetic vulnerability and parenting style in children adopted from Finnish mothers with schizophrenia and found that a child raised with high levels of criticism and conflict and low levels of empathy appeared to be associated with developing schizophrenia but only for the children with high genetic risk
• Diathesis-stress model - individuals have varying genetic potentials for SZ, that combine with the degree of environmental stressors to form their actual vulnerabilitygrowing evidence for the DTSM may prove that looking at both factors are more credible than looking at genetic/environmental factors separately
• Schizophrenia has a genetic component, but discordance between twins suggest environmental factors play a role - there is no 'schizogene' but many genes which may increase vulnerability.