A researcher investigated the effectiveness of different psychological interventions for generalized anxiety disorder. 180 patients initially completed a standardized clinical anxiety scale ranging from 1 (no anxiety) to 20 (severe anxiety).
80 patients who scored between 14 and 16 (indicating moderate-to-high anxiety) were selected to participate in a clinical trial. They were randomly allocated to one of three conditions:
After the eight-week period, all participants completed the anxiety scale again so researchers could analyze changes in symptom severity.
The researcher asked the 80 patients for fully informed consent to take part in this trial. Outline what the researcher should have told the patients so that they were able to give genuinely informed consent.
689 exam-style questions on AQA A Level Psychology Scientific processes. Each one has a worked solution and a mark scheme showing where the marks go.