Acceptance and Commitment Therapy on Psychological Flexibility, Values, and Well-Being: A Single-Case Experimental Study (ACT-UNIVALLE)
Acceptance and Commitment Therapy on Psychological Flexibility, Values, and Well-Being
The goal of this clinical trial is to evaluate the effects of a brief Acceptance and Commitment Therapy (ACT)-based group intervention on psychological flexibility, values-based functioning, and psychological well-being in university students aged 18 to 28 years presenting elevated levels of emotional distress and psychological risk indicators.
The main questions it aims to answer are:
Does a brief ACT-based intervention reduce experiential avoidance and cognitive fusion in university students? Does the intervention improve present-moment awareness, values-based functioning, life satisfaction, and psychological flourishing?
Participants will:
Complete repeated self-report assessments across 13 measurement points distributed throughout baseline, intervention, and follow-up phases.
Participate in five weekly ACT-based group intervention sessions delivered by trained clinical psychologists.
Engage in experiential ACT exercises focused on acceptance, mindfulness, cognitive defusion, values clarification, and committed action.
Complete between-session activities and behavioral practices related to the ACT processes addressed during the intervention.
Participate in follow-up assessments to evaluate maintenance of treatment effects over time.
연구 개요
상태
상세 설명
University students frequently experience elevated levels of emotional distress, including symptoms of anxiety, depression, stress, worry, and psychological maladjustment. Brief interventions based on Acceptance and Commitment Therapy (ACT) have shown promising results in reducing experiential avoidance and cognitive fusion while promoting psychological flexibility and well-being.
The present study evaluates the effects of a brief ACT-based intervention protocol delivered in a group format using a Single-Case Experimental Design (SCED) with repeated measurements across baseline, intervention, and follow-up phases. The intervention focuses on core ACT processes, including acceptance, cognitive defusion, present-moment awareness, values clarification, and committed action.
Participants completed repeated assessments of psychological flexibility processes and well-being indicators across thirteen measurement points distributed throughout the study phases. The investigators hypothesize that the ACT-based intervention will produce reductions in experiential avoidance and cognitive fusion, together with improvements in present-moment awareness, values-based functioning, life satisfaction, and flourishing.
연구 유형
등록 (실제)
단계
- 해당 없음
연락처 및 위치
연구 장소
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Valle del Cauca Department
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Cali, Valle del Cauca Department, 콜롬비아, 760032
- Faculty of Psychology, Universidad del Valle
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참여기준
자격 기준
공부할 수 있는 나이
- 성인
건강한 자원 봉사자를 받아들입니다
설명
Inclusion Criteria:
University students aged 18 years or older Interest in strengthening mental health and psychological well-being Voluntary agreement to participate in the study
High-risk scores on at least one of the following screening instruments:
Depression Anxiety Stress Scales (DASS-21) General Health Questionnaire (GHQ-12) State Worry Questionnaire-11 (SWQ-11)
Exclusion Criteria:
Current psychological or psychiatric treatment Current use of psychiatric medication Diagnosis related to developmental or learning difficulties Failure to attend intervention sessions Incomplete participation in study assessments
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
- 주 목적: 치료
- 할당: 해당 없음
- 중재 모델: 단일 그룹 할당
- 마스킹: 없음(오픈 라벨)
무기와 개입
참가자 그룹 / 팔 |
개입 / 치료 |
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실험적: ACT-Based Brief Group Intervention
The intervention consisted of a brief ACT-based group protocol delivered weekly by trained clinical psychologists.
The protocol targeted core ACT processes including acceptance, cognitive defusion, present-moment awareness, values clarification, and committed action.
Sessions incorporated experiential exercises, metaphors, mindfulness practices, reflective activities, and between-session behavioral tasks designed to promote psychological flexibility and psychological well-being in university students.
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The intervention consisted of a brief group-based Acceptance and Commitment Therapy (ACT) protocol designed to promote psychological flexibility and psychological well-being in university students presenting elevated emotional distress and psychological risk indicators. The protocol was grounded in the functional contextual approach and targeted core ACT processes, including acceptance, cognitive defusion, present-moment awareness, values clarification, and committed action. Participants were organized into small groups of 5 to 8 individuals and attended five weekly intervention sessions conducted by trained clinical psychologists with at least five years of clinical experience. Prior to implementation, therapists completed specialized ACT training delivered by an expert clinician with extensive experience in Acceptance and Commitment Therapy. The intervention protocol included an initial preliminary session focused on motivational engagement, informed consent procedures, feedback rega
다른 이름들:
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연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
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Mindful Attention Awareness Scale (MAAS)
기간: Weekly during baseline (4 weeks), intervention (6 weeks), and follow-up (3 weeks), up to 13 weeks
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The Mindful Attention Awareness Scale (MAAS) is a 15-item self-report questionnaire designed to assess present-moment attention and awareness in daily life.
Items are rated on a 6-point Likert-type scale ranging from 1 ("almost always") to 6 ("almost never").
Total scores are calculated by summing item responses, with higher scores indicating greater mindfulness and present-moment awareness.
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Weekly during baseline (4 weeks), intervention (6 weeks), and follow-up (3 weeks), up to 13 weeks
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Acceptance and Action Questionnaire-II (AAQ-II)
기간: Weekly during baseline (4 weeks), intervention (6 weeks), and follow-up (3 weeks), up to 13 weeks.
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The Acceptance and Action Questionnaire-II (AAQ-II) is a 7-item self-report questionnaire designed to assess experiential avoidance and psychological inflexibility.
Items are rated on a 7-point Likert-type scale ranging from 1 ("never true") to 7 ("always true").
Total scores are calculated by summing item responses, with higher scores indicating greater experiential avoidance and psychological inflexibility.
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Weekly during baseline (4 weeks), intervention (6 weeks), and follow-up (3 weeks), up to 13 weeks.
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Cognitive Fusion Questionnaire (CFQ)
기간: Weekly during baseline (4 weeks), intervention (6 weeks), and follow-up (3 weeks), up to 13 weeks.
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The Cognitive Fusion Questionnaire (CFQ) is a 7-item self-report questionnaire designed to assess cognitive fusion.
Items are rated on a 7-point Likert-type scale ranging from 1 ("never true") to 7 ("always true").
Total scores are calculated by summing item responses, with higher scores indicating greater cognitive fusion.
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Weekly during baseline (4 weeks), intervention (6 weeks), and follow-up (3 weeks), up to 13 weeks.
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2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
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Valuing Questionnaire - Obstruction Subscale (VQ-Obstruction)
기간: Weekly during baseline (4 weeks), intervention (6 weeks), and follow-up (3 weeks), up to 13 weeks.
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The Valuing Questionnaire - Obstruction Subscale (VQ-Obstruction) is a 5-item self-report measure designed to assess barriers and interference with values-based living.
Items are rated on a 7-point Likert-type scale ranging from 0 ("not at all true") to 6 ("completely true").
Higher scores indicate greater obstruction in valued living.
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Weekly during baseline (4 weeks), intervention (6 weeks), and follow-up (3 weeks), up to 13 weeks.
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Satisfaction With Life Scale (SWLS)
기간: Weekly during baseline (4 weeks), intervention (6 weeks), and follow-up (3 weeks), up to 13 weeks.
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The Satisfaction With Life Scale (SWLS) is a 5-item self-report questionnaire designed to assess global life satisfaction.
Items are rated on a 7-point Likert-type scale ranging from 1 ("strongly disagree") to 7 ("strongly agree").
Total scores are calculated by summing item responses, with higher scores indicating greater life satisfaction.
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Weekly during baseline (4 weeks), intervention (6 weeks), and follow-up (3 weeks), up to 13 weeks.
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Flourishing Scale (FS)
기간: Weekly during baseline (4 weeks), intervention (6 weeks), and follow-up (3 weeks), up to 13 weeks.
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The Flourishing Scale (FS) is an 8-item self-report questionnaire designed to assess psychological flourishing, including meaning in life, interpersonal relationships, competence, and optimism.
Items are rated on a 7-point Likert-type scale ranging from 1 ("strongly disagree") to 7 ("strongly agree").
Total scores are calculated by summing item responses, with higher scores indicating greater psychological flourishing.
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Weekly during baseline (4 weeks), intervention (6 weeks), and follow-up (3 weeks), up to 13 weeks.
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공동 작업자 및 조사자
연구 기록 날짜
연구 주요 날짜
연구 시작 (실제)
기본 완료 (실제)
연구 완료 (실제)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (실제)
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
추가 정보
이 연구와 관련된 용어
기타 연구 ID 번호
- Universidad del Valle
- UNIVALLE-ACT-2025 (기타 식별자: Faculty of Psychology, Universidad del Valle)
- Faculty of Psychology (기타 식별자: Faculty of Psychology, Universidad del Valle)
개별 참가자 데이터(IPD) 계획
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