Researchers wanted to investigate the effectiveness of daily diaphragmatic breathing training guided by a wearable biofeedback device on reducing occupational stress. They recruited 60 corporate software developers experiencing high work-related stress, who were randomly allocated to either a biofeedback-guided group (Condition 1) or a leaflet-guided group (Condition 2).
During the three-week study period:
After the three-week period, all participants completed the Perceived Stress Scale (PSS-10), and their stress levels were recorded as a score from 0 to 40 (where higher scores indicate higher perceived stress).
State a fully operationalised directional (one-tailed) experimental hypothesis for this study.
638 exam-style questions on Edexcel A Level Psychology Methods. Each one has a worked solution and a mark scheme showing where the marks go.