A psychologist conducted a study to investigate if background music affects concentration. Group A completed a task with classical music playing in the background, while Group B completed the same task in silence. The time taken (in minutes) to complete the task was recorded for each participant. Identify the dependent variable in this study.
Practise AQA A Level Psychology Scientific processes with exam-style questions for A Level Psychology. 100 questions, matched to the AQA A Level Psychology (7182) 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.