Dr. Aris conducted a study investigating the relationship between daily stress levels and adherence to a newly prescribed diabetic diet regime among patients with Type 2 diabetes. He used an opportunity sample of 15 participants recruited from a single private endocrinology clinic and relied on retrospective self-report questionnaires completed at the end of a 4-week period to measure diet adherence.
Explain one improvement that Dr. Aris could make to his investigation.
Practise Edexcel A Level Psychology Research methods and skills with exam-style questions for A Level Psychology. 657 questions covering Research methods and skills, matched to the Edexcel A Level Psychology (9PS0) 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.
