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Randomized Controlled Trial
. 2020 Jan;51(1):190-202.
doi: 10.1016/j.beth.2019.06.001. Epub 2019 Jun 12.

Examining Hope as a Transdiagnostic Mechanism of Change Across Anxiety Disorders and CBT Treatment Protocols

Matthew W Gallagher  1 , Laura J Long  2 , Angela Richardson  2 , Johann D'Souza  2 , James F Boswell  3 , Todd J Farchione  4 , David H Barlow  4
Affiliations
Randomized Controlled Trial

Examining Hope as a Transdiagnostic Mechanism of Change Across Anxiety Disorders and CBT Treatment Protocols

Matthew W Gallagher et al. Behav Ther. 2020 Jan.

Abstract

Hope is a trait that represents the capacity to identify strategies or pathways to achieve goals and the motivation or agency to effectively pursue those pathways. Hope has been demonstrated to be a robust source of resilience to anxiety and stress and there is limited evidence that, as has been suggested for decades, hope may function as a core process or transdiagnostic mechanism of change in psychotherapy. The current study examined the role of hope in predicting recovery in a clinical trial in which 223 individuals with 1 of 4 anxiety disorders were randomized to transdiagnostic cognitive behavior therapy (CBT), disorder-specific CBT, or a waitlist controlled condition. Effect size results indicated moderate to large intraindividual increases in hope, that changes in hope were consistent across the five CBT treatment protocols, that changes in hope were significantly greater in CBT relative to waitlist, and that changes in hope began early in treatment. Results of growth curve analyses indicated that CBT was a robust predictor of trajectories of change in hope compared to waitlist, and that changes in hope predicted changes in both self-reported and clinician-rated anxiety. Finally, a statistically significant indirect effect was found indicating that the effects of treatment on changes in anxiety were mediated by treatment effects on hope. Together, these results suggest that hope may be a promising transdiagnostic mechanism of change that is relevant across anxiety disorders and treatment protocols.

Keywords: CBT; anxiety; hope; mechanism of change; transdiagnostic.

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Figures

Figure 1.
Figure 1.
Example parallel process latent growth curve model examining the indirect effect of treatment on clinician rated anxiety (HAMA) via hope
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