Devon conducted a laboratory experiment to investigate the duration of short-term memory using a consonant trigram recall task. He used an opportunity sample of 15 elderly residents from a single local retirement home.
Explain one improvement Devon could have made to his 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.
