Wiles CBT Study

• Treatment resistant


  Patients who have taken antidepressants for 6 weeks with no improvement
• Viles' study


  • Carefully controlled with a large and diverse sample
  • Results are likely to be valid and generalisable
• Viles' study


  Evaluates an area of mental health that has only been studied using correlation previously
• Viles' research


  Can inform treatment plans for real doctors and their patients, supporting their recovery, helping them as individuals and wider society
• Participants and researchers could not be blind to the condition

  Potential for bias
• Participants in CBT and antidepressant condition

  May have figured out the researchers' desired results and given them
• Researchers/clinicians conducting the test


  Knew the nature of the study and may have given away the response they wanted with body language
• Using self-report measures


  Difficult to objectively measure internal mental state, responses may not be accurate