A researcher carried out a study to investigate sleep patterns among Year 12 sociology students from two local sixth-form colleges.
College X has 60 Year 12 sociology students, and College Y has 40 Year 12 sociology students. The researcher used a stratified sampling method to select a sample of 20 Year 12 sociology students to represent these two colleges.
Explain how the researcher might have obtained the stratified sample of 20 Year 12 sociology students from the two different sixth-form colleges.
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.
