Dr. Aris carried out a study to test the effectiveness of a new cognitive behavioural intervention for alcohol addiction using one participant who was classified as a heavy drinker.
She compared the participant's weekly alcohol consumption before they underwent the intervention with their weekly consumption after the intervention.
Identify the experimental design Dr. Aris used in this study.
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.
