Dr. Aris conducted an investigation to evaluate the effectiveness of a family-focused therapy (FFT) program for adolescents recovering from anorexia nervosa. He recruited an opportunity sample of 12 families from a single specialized eating disorder unit and asked the parents to complete a self-report questionnaire measuring family conflict levels before and immediately after the 6-week therapy program. His results showed a significant reduction in family conflict scores.
Explain one improvement 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.
