Acceptance and Commitment Therapy
Also known as: ACT, third-wave therapy
Acceptance and Commitment Therapy (ACT) is a values-based, process-oriented psychotherapy developed by Steven C. Hayes and colleagues that helps individuals create meaningful lives while living with difficult thoughts, feelings, and sensations. Using mindfulness, values clarification, and behavioral commitment, ACT represents a third-wave approach to cognitive-behavioral therapy and has demonstrated effectiveness across diverse psychological problems.
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When to use it
ACT is appropriate for mood, anxiety, trauma, chronic pain, and behavioral disorders where avoidance or experiential struggle maintains the problem. It is particularly valuable when clients are stuck in symptom-focused change efforts or when symptoms are difficult to eliminate. ACT works best for clients with adequate insight, some motivation for values clarification, and willingness to tolerate discomfort.
Strengths & limitations
- Empirically supported across diverse disorders (anxiety, depression, chronic pain, OCD, PTSD)
- Addresses psychological flexibility and values alignment, promoting meaningful life change beyond symptom reduction
- Compatible with diverse populations and cultural values systems
- Accessible through brief interventions or longer treatment; flexible delivery
- Reduces therapist and client focus on symptom elimination, decreasing struggle and experiential avoidance
- Conceptual complexity; clients must grasp acceptance and paradox, which some find counterintuitive
- Requires clinician expertise in metaphor, experiential exercises, and values clarification
- Limited evidence for severe acute conditions (acute crisis, psychosis) requiring immediate intervention
- Values clarification can be emotionally challenging, requiring adequate stabilization beforehand
- Some clients misinterpret acceptance as passive resignation or giving up
Frequently asked
Does acceptance mean I have to be happy with my problems?
No. Acceptance means willingness to experience difficult thoughts and feelings without struggling against them. It is not resignation; rather, it frees energy for valued action despite discomfort.
Is ACT similar to mindfulness or meditation?
ACT uses mindfulness skills but extends beyond meditation to emphasize values clarification and behavioral commitment. Mindfulness is a component, not the entire approach.
How is ACT different from CBT?
CBT focuses on changing thoughts and reducing symptoms; ACT focuses on changing the relationship to thoughts and increasing values-aligned action. Both are evidence-based but have different targets.
How long does ACT treatment take?
ACT can be delivered in brief interventions (one to a few sessions) or ongoing therapy (12+ sessions). Duration depends on problem complexity and treatment goals.
Sources
- Hayes, S. C., Luoma, J. B., Bond, F. W., Masuda, A., & Lillis, J. (2006). Acceptance and commitment therapy: Model, processes, and outcomes. Behaviour Research and Therapy, 44(1), 1–25. DOI: 10.1016/j.brat.2005.06.006 ↗
- Hayes, S. C., Strosahl, K. D., & Wilson, K. G. (2012). Acceptance and commitment therapy: The process and practice of mindful change (2nd ed.). Guilford Press. ISBN: 9781609189624
How to cite this page
ScholarGate. (2026, June 3). Acceptance and Commitment Therapy. ScholarGate. https://scholargate.app/en/clinical-psychology/acceptance-commitment-therapy
Which method?
Set this method beside its closest kin and read them side by side — the library lays the books on the table; the choice is yours.
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