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The Effects of Internet-Based Acceptance and Commitment Therapy on Process Measures: Systematic Review and
Areum Han1, Tae Hui Kim2,3
1Department of Occupational Therapy, University of Alabama at Birmingham, Birmingham, AL, United States.
Journal of Medical Internet Research
|August 30, 2022
Summary
Internet-based Acceptance and Commitment Therapy (iACT) shows medium effects on psychological flexibility and small effects on related processes. These findings support iACT
Area of Science:
- Psychology
- Behavioral Science
- Digital Health
Background:
- Acceptance and Commitment Therapy (ACT) is grounded in a psychological flexibility model.
- Key ACT processes include acceptance, cognitive defusion, self-as-context, being present, values, and committed action.
Purpose of the Study:
- To systematically review and meta-analyze randomized controlled trials (RCTs) on internet-based ACT (iACT).
- To examine the effects of iACT on psychological flexibility and its core process measures.
Main Methods:
- A comprehensive literature search across 4 databases.
- Quality assessment of 34 included RCTs using the Cochrane Risk of Bias Tool.
- Meta-analysis utilizing random-effects or fixed-effects models with subgroup analyses.
Main Results:
- iACT demonstrated a medium effect on psychological flexibility immediately post-intervention.
- Small effects were observed for mindfulness, valued living, and cognitive defusion at posttest.
- A small effect on psychological flexibility was maintained at follow-up.
Conclusions:
- Findings support the efficacy of iACT in enhancing psychological flexibility and related processes.
- Highlights the need for more research comparing iACT with active control groups.
- Provides evidence for mental health practitioners to utilize iACT effectively.
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