A comparison of delivery methods of cognitive-behavioral therapy for panic disorder: an international multicenter trial

Justin A. Kenardy, Michael G. T. Dow, Derek W. Johnston, Michelle G. Newman, Aileen Thomson, C. Barr Taylor

Research output: Contribution to journalArticlepeer-review

100 Citations (Scopus)


Cognitive-behavioral therapy (CBT) is the psychological treatment of choice for panic disorder (PD). However, given limited access to CBT, it must be delivered with maximal cost-effectiveness. Previous researchers have found that a brief computer-augmented CBT was as effective as extended therapist-delivered CBT. To test this finding, this study randomly allocated 186 patients with PD across 2 sites in Scotland and Australia to 12 sessions of therapist-delivered CBT (CBT12), 6 sessions of therapist-delivered (CBT6) or computer-augmented CBT (CBT6-CA), or a waitlist control. On a composite measure, at posttreatment, the outcome for CBT 12 was statistically better than the outcome for CBT6. The outcome for CBT6-CA fell between CBT12 and CBT6, but could not be statistically distinguished from either treatment. The active treatments did not differ statistically at 6-month follow-up. The study provided some support for the use of computers as an innovative adjunctive-therapy tool and merits further investigation.
Original languageEnglish
Pages (from-to)1068-1075
Number of pages8
JournalJournal of Consulting and Clinical Psychology
Issue number6
Publication statusPublished - Dec 2003


  • Adult
  • Cognitive Therapy
  • Combined Modality Therapy
  • Computers, Handheld
  • Desensitization, Psychologic
  • Female
  • Humans
  • Male
  • Middle Aged
  • Outcome and Process Assessment (Health Care)
  • Panic Disorder
  • Personality Inventory
  • Psychotherapy, Brief
  • Software
  • Therapy, Computer-Assisted

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