A clinical psychologist wants to investigate whether a new digital mindfulness application reduces self-reported anxiety levels. She recruits sixty participants who score high on an anxiety scale and randomly assigns them to two separate groups. The first group is instructed to use the digital mindfulness application for 15 minutes daily over a two-week period. The second group is instructed to listen to an unrelated classical music playlist for 15 minutes daily over the same two-week period.
Name and briefly describe the experimental design used in this study.
644 exam-style questions on OCR A Level Psychology Research methods and techniques. Each one has a worked solution and a mark scheme showing where the marks go.