As part of your practical work in biological psychology, you designed and conducted an investigation (for example, exploring the effects of physiological arousal, caffeine consumption, or circadian rhythms on cognitive performance).
Explain one strength and one weakness of the specific procedure or research method you used to carry out this investigation.
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.
