williams

• aim


  to study the impact of imagery based cognitive bias modification on negative thinking bias distress and symptoms

  to see whether this intervention would, improve the effectiveness of online CBT
• what is it?


  combining imagination and reason in the treatment of depression: randomised control trial of internet based cognitive bias modification and internet CBT for depression
• method


  clients recruited by an australian clinic

  participants completed on online screening questionaire and diagnostic interview by phone resulting in 69 participants in intervention or WLC group
• method


  time 1- baseline measures of depression, symptoms, distress, degree of disability, anxiety

  intervention group- 7 days WLC( wait list control group)no intervention

  time 2 - all clients complete questionnaire again

  intervention group- 10 week ICBT course

  WLC- no intervention

  time 3- all clients complete questionnaire again

  WLC group- 10 week ICBT
• method


  CBM-I - daily 20 minute sessions for one week, shown ambiguous scenarios resolved in a positive way to train clients to think positively about everyday lives

  I-CBT- sadness program is 6 online lessons showcasing 'best practice CBT'
• results


  CBM-I means BD1-11 score dropped 9 points for intervention group 3 points for WLC

  I-CBT mean BD1-11 score dropped nearly 18 points for intervention group

  only 7.5 lower for WLC- means K10 score decreased nearly 12 points for intervention group and 4 for WLC
• conclusions


  brief online CBM-1 has significant symptom effect in one week

  combined intervention significantly reducess depressive symptoms, distress, disability, anxiety and rumination in people diagnosed with major depressive episode
• generalisability


  participants were only from australia so can not be generalised to other countries

  total of 69 participants, 38 in the intervention group and 31 in waiting room list
• reliability


  based on self- reporting data and may be unreliable due to human inconsistency in their answers

  participants may lie in their answers due to demand characteristics and social desireablilty
• application


  computer based therapy is effective very quickly meaning people who need therapy can access it fast rather than waiting on a list till therapist is available
• validity


  measures used well established and tested to ensure their was relevance and validity, however the study took week and researchers had little control
• ethics


  right to withdraw was given and also informed consent