Dr. Vance conducted an investigation into the effectiveness of a newly developed mindfulness smartphone application designed to reduce work-related stress in high-anxiety professions. He recruited a sample of 40 financial traders and asked them to use the application for 15 minutes daily over a two-week period. At the end of the two weeks, Dr. Vance administered a self-report stress questionnaire and recorded their stress scores. He did not measure their stress levels prior to using the application, and no control group was used.
Explain one improvement Dr. Vance could make to the design of his 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.
