Read the study description below:
A college researcher wanted to investigate student attitudes toward the college's new internal environmental sustainability initiative. They used an opportunity sample by recruiting students from the science block's common room. Consequently, all of the recruited students turned out to be studying STEM subjects.
Explain how using stratified sampling might improve the design of this study.
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.
