Quasi-experiments are frequently used as a research method in biological psychology, such as when investigating the behavior of individuals with pre-existing brain damage.
Evaluate the use of quasi-experiments in terms of their validity (both internal and external) as a research method in biological psychology in comparison to the use of laboratory experiments.
Practise Edexcel A Level Psychology Research methods and skills with exam-style questions for A Level Psychology. 657 questions covering Research methods and skills, 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.
