Twin studies are a fundamental research method used by biological psychologists to investigate the heritability of human behaviour and resolve the nature-nurture debate.
Evaluate the use of twin studies as a research method to investigate the genetic basis of human behaviour.
Practise Edexcel A Level Psychology Issues and debates with exam-style questions for A Level Psychology. 147 questions covering Issues and debates, matched to the Edexcel A Level Psychology (9PS0) 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.
