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Mediators of change in cognitive behavior therapy and interpersonal psychotherapy for eating disorders: A secondary analysis of a transdiagnostic randomized controlled trial.

Katy SivyerElizabeth AllenZafra CooperSuzanne Bailey-StraeblerMarianne E O'ConnorChristopher G FairburnRebecca Murphy
Published in: The International journal of eating disorders (2020)
This research highlights the potential benefits of embedding mediation studies within RCTs to better understand how treatments work. The findings supported the role of regular eating in reducing patients' binge-eating frequency. Other key hypothesized mediators of CBT-E and IPT-ED were not supported, although the data were not inconsistent with them. Key methodological issues to address in future work include the need to capture both behavioral and cognitive processes of change in CBT-E, and identifying key time points for change in IPT-ED.
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