A researcher conducted a study to investigate the effectiveness of different therapeutic interventions for Social Anxiety Disorder.
Forty-five participants, all diagnosed with Social Anxiety Disorder, took part in the study. Before the interventions began, the researcher recorded the self-reported daily anxiety levels of each participant using a standardised 1–10 rating scale.
The 45 participants were then randomly allocated to three conditions with 15 participants in each:
At the end of the 8-week period, the researcher again recorded the daily anxiety ratings for each participant. The results showed that the average daily anxiety level for Group 1 and Group 2 had significantly decreased, while the average daily anxiety level for Group 3 showed no change.
Identify the independent variable in this study.
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.