Dr Aris conducted a study investigating the impact of a gamified language-learning app on cognitive focus in a small sample of 12 retired adults. He recruited participants using opportunity sampling from a local bridge club, and measured cognitive focus using a self-report rating scale.
Explain one improvement Dr Aris could make to his study.
Practise Edexcel A Level Psychology Methods with exam-style questions for A Level Psychology. 638 questions, 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.