An industrial psychologist is studying the effects of adaptive active noise-cancelling headphones on cognitive fatigue during intense software programming tasks. There are 150 software developers participating in the study. The researcher assigns the first 75 developers who register for the study to Group A and the remaining 75 developers to Group B.
The researcher instructs participants in Group A to work while wearing adaptive active noise-cancelling (ANC) headphones over a five-day work period.
The researcher instructs participants in Group B, the control group, to work while wearing passive noise-isolating headphones over the same five-day period.
Explain how random allocation could be carried out to assign the 150 participants to these two groups.
Practise AQA A Level Psychology Scientific processes with exam-style questions for A Level Psychology. 689 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.
