An occupational psychologist is investigating the relationship between workplace lighting and productivity at a logistics firm with 1,200 1,200\,1,200 warehouse staff. The psychologist assigns a unique number from 1 to 1,200 1,200\,1,200 to every employee on the payroll, then uses a random number generator to select 80 employees to participate in the study.
Which sampling technique has the psychologist used?
Systematic sampling
Opportunity sampling
Stratified sampling
Random sampling
644 exam-style questions on OCR A Level Psychology Research methods and techniques. Each one has a worked solution and a mark scheme showing where the marks go.