Marcus conducted an experiment to investigate the effects of acoustic environment on task performance.
Participants were divided into two separate groups:
Marcus recorded the total number of errors made by each participant. He then carried out a Mann-Whitney U test on his data.
State two reasons why Marcus chose to use a Mann-Whitney U test to analyze his data.
Practise Edexcel A Level Psychology Methods with exam-style questions for A Level Psychology. 100 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.