Elena carried out an experiment to investigate whether listening to background classical music affects working memory capacity.
She asked participants to complete a computerized digit span task (recalling sequences of numbers) while classical music was playing in the background.
The same participants were then asked to complete an equivalent digit span task of equal difficulty, but in silence.
Elena used a repeated measures design in her experiment.
Explain one strength and one weakness of using a repeated measures design in this study.
Practise Edexcel A Level Psychology Research methods and skills with exam-style questions for A Level Psychology. 657 questions covering Research methods and skills, 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.