Amara carried out some research into the effects of outdoor play on children's cooperative behaviour. She rated their cooperative play on a scale of 1 to 10. The children who had daily outdoor play had a mean rating score of 8.2. The children who had indoor-only play had a mean rating score of 5.1.
State which non-parametric statistical test Amara should use to analyse her data.
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.