Related Experiment Video
Updated: Nov 6, 2025

Functional Near-Infrared Spectroscopy Hyperscanning Study in Psychological Counseling
Published on: January 17, 2025
Web-based Acceptance and Commitment Therapy (ACT) for symptoms of anxiety and depression: Within-group effect size
Micki Washburn1, Miao Yu1, Allen Rubin2
1School of Social Work, University of Texas at Arlington, USA.
Abstract:
COVID-19 has highlighted the need for evidence-based behavioural health interventions that can be delivered remotely. This article provides within-group effect size benchmarks for randomised controlled trials of Internet-based Acceptance and Commitment Therapy for the treatment of adults with anxiety and depression. Effect sizes were calculated using the Glass approach, adjusted using Hedges g, then aggregated to produce separate benchmarks for measures of anxiety and depression. These benchmarks can be used by community-based treatment providers to evaluate the effectiveness of their web-based Acceptance and Commitment Therapy intervention to determine if it should be continued, modified for the unique needs of their client population and practice setting, or discontinued.
Related Concept Videos
Cognitive Therapy
Behavior Therapy
Exposure therapy is a cornerstone of behavioral treatment for anxiety disorders. It involves systematic exposure to feared stimuli, either in real...
Rational Emotive Behavior Therapy
Social Anxiety Disorder
Generalized Anxiety Disorder
Modeling in Therapy
Participant Modeling
Participant modeling involves therapists demonstrating calm and effective behaviors in...

