Dr Aris conducted an investigation into whether listening to binaural beats affects the time taken to complete a spatial reasoning puzzle. One group of participants listened to binaural beats while solving the puzzle, and a second, different group of participants listened to pink noise. Dr Aris recorded the time taken (in seconds) for each participant to successfully complete the puzzle. The binaural beats group had a mean completion time of 142.6 seconds, while the pink noise group had a mean completion time of 175.3 seconds.
Identify an appropriate statistical test that Dr Aris could use to analyse the difference between the two groups.
638 exam-style questions on Edexcel A Level Psychology Methods. Each one has a worked solution and a mark scheme showing where the marks go.