Dr. Vance is investigating the role of neurochemistry in obsessive-compulsive disorder (OCD) by measuring serotonin levels in patients before and after they take selective serotonin reuptake inhibitors (SSRIs).
Briefly explain one strength of Dr. Vance using the biological approach to investigate human behaviour.
48 exam-style questions on AQA A Level Psychology Biological approach. Each one has a worked solution and a mark scheme showing where the marks go.