Researchers wanted to investigate the impact of different workspace physical interventions on afternoon cognitive fatigue in hospital administrative and support staff.
A total of 80 administrative and support staff from a large regional hospital were recruited for the study.
The participants were split into two groups:
Following a two-week trial period, all participants completed a computerized sustained-attention test at 3:00 PM to measure cognitive fatigue.
Describe how the researchers could have used a stratified sampling technique to recruit the 80 administrative and support staff.
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.