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Internet Treatment for Generalized Anxiety Disorder: A Randomized Controlled Trial Comparing Clinician vs. Technician Assistance

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  • Emma Robinson
  • Nickolai Titov
  • Gavin Andrews
  • Karen McIntyre
  • Genevieve Schwencke
  • Karen Solley

Abstract

Background: Internet-based cognitive behavioural therapy (iCBT) for generalized anxiety disorder (GAD) has been shown to be effective when guided by a clinician. The present study sought to replicate this finding, and determine whether support from a technician is as effective as guidance from a clinician. Method: Randomized controlled non-inferiority trial comparing three groups: Clinician-assisted vs. technician-assisted vs. delayed treatment. Community-based volunteers applied to the VirtualClinic (www.virtualclinic.org.au) research program and 150 participants with GAD were randomized. Participants in the clinician- and technician-assisted groups received access to an iCBT program for GAD comprising six online lessons, weekly homework assignments, and weekly supportive contact over a treatment period of 10 weeks. Participants in the clinician-assisted group also received access to a moderated online discussion forum. The main outcome measures were the Penn State Worry Questionnaire (PSWQ) and the Generalized Anxiety Disorder-7 Item (GAD-7). Completion rates were high, and both treatment groups reduced scores on the PSWQ (p

Suggested Citation

  • Emma Robinson & Nickolai Titov & Gavin Andrews & Karen McIntyre & Genevieve Schwencke & Karen Solley, 2010. "Internet Treatment for Generalized Anxiety Disorder: A Randomized Controlled Trial Comparing Clinician vs. Technician Assistance," PLOS ONE, Public Library of Science, vol. 5(6), pages 1-9, June.
    • Handle: RePEc:plo:pone00:0010942
    DOI: 10.1371/journal.pone.0010942
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    Cited by:

    1. Nickolai Titov & Blake F Dear & Luke Johnston & Carolyn Lorian & Judy Zou & Bethany Wootton & Jay Spence & Peter M McEvoy & Ronald M Rapee, 2013. "Improving Adherence and Clinical Outcomes in Self-Guided Internet Treatment for Anxiety and Depression: Randomised Controlled Trial," PLOS ONE, Public Library of Science, vol. 8(7), pages 1-11, July.
    2. Filip K Arnberg & Steven J Linton & Monica Hultcrantz & Emelie Heintz & Ulf Jonsson, 2014. "Internet-Delivered Psychological Treatments for Mood and Anxiety Disorders: A Systematic Review of Their Efficacy, Safety, and Cost-Effectiveness," PLOS ONE, Public Library of Science, vol. 9(5), pages 1-13, May.
    3. Luke Johnston & Nickolai Titov & Gavin Andrews & Jay Spence & Blake F Dear, 2011. "A RCT of a Transdiagnostic Internet-Delivered Treatment for Three Anxiety Disorders: Examination of Support Roles and Disorder-Specific Outcomes," PLOS ONE, Public Library of Science, vol. 6(11), pages 1-13, November.
    4. Gerhard Andersson & Per Carlbring & Tomas Furmark & on behalf of the S. O. F. I. E. Research Group, 2012. "Therapist Experience and Knowledge Acquisition in Internet-Delivered CBT for Social Anxiety Disorder: A Randomized Controlled Trial," PLOS ONE, Public Library of Science, vol. 7(5), pages 1-10, May.

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