Maya wants to test the effect of environmental noise on selective attention. She asks her participants to complete a proofreading task in a quiet room, and then a similar proofreading task in a noisy room (with order of conditions counterbalanced).
Maya records the time taken (in seconds) by each participant to find all errors in both conditions to see if there is a difference in performance.
Explain which statistical test Maya 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.