An educational psychologist is investigating whether a student's primary sleep chronotype (being a natural 'night owl' versus a natural 'morning lark') affects their performance on a standardized cognitive reasoning test.
One group of participants consists of naturally occurring 'night owls', and the other group consists of naturally occurring 'morning larks'.
Each participant completes the reasoning test at 8:00 AM, and their test score is recorded.
State why an 'independent groups' design is suitable for this investigation.
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.