6533b82dfe1ef96bd1291447

RESEARCH PRODUCT

A brief Acceptance and Commitment Therapy intervention for depression : A randomized controlled trial with 3-year follow-up for the intervention group

Heidi KyllönenAnne PuolakanahoPiia AstikainenJoona MuotkaRaimo LappalainenKatariina Keinonen

subject

masennus050103 clinical psychologyOrganizational Behavior and Human Resource Managementmedicine.medical_specialtyHealth (social science)hyväksymis- ja omistautumisterapiaeffectivenessIntervention groupAcceptance and commitment therapylaw.invention03 medical and health sciencesBehavioral Neuroscience0302 clinical medicineRandomized controlled trialbrief interventionslawIntervention (counseling)medicine0501 psychology and cognitive sciencesAcceptance and Commitment TherapyApplied PsychologyEcology Evolution Behavior and SystematicsDepression (differential diagnoses)ta51505 social sciencesnovice therapists030227 psychiatry3. Good healthlyhytterapiadepressionPhysical therapyPsychology

description

Abstract Objective This study examined the outcomes of a brief Acceptance and Commitment Therapy (ACT) intervention for depression delivered by novice therapists. Method Participants (N = 115) were randomized either to the brief (six sessions) ACT or to a waitlist control condition (WLC). Outcomes were assessed with diagnoses of depressive episodes (ICD-10) and questionnaires. Results After the 6-week intervention, diagnostic remission rates were 60% in the ACT and 22% in the control group. Further, 70% of the ACT participants were classified as either recovered or improved. The post-measurement between-group effect size for depression symptoms was large and favored the ACT group (BDI-II, d = 1.25). At the 3-year follow-up, the within-group effect sizes were encouraging (d = 1.11–1.77). Conclusions A 6-h ACT intervention delivered by novice therapists can lead to improvement in approximately 60–70% of depressed clients.

yearjournalcountryeditionlanguage
2018-10-01Journal of Contextual Behavioral Science
10.1016/j.jcbs.2018.08.009https://doi.org/10.1016/j.jcbs.2018.08.009