The Effectiveness of Trauma-Focused Acceptance and Commitment Therapy in Reducing Symptoms of Complex Post-Traumatic Stress Disorder: A Single Case Study Mixed Method

This study investigated the effectiveness of Trauma-Focused Acceptance and Commitment Therapy (TF-ACT) in alleviating symptoms of Complex Post-Traumatic Stress Disorder (C-PTSD) through a comprehensive single case study. The participant, a 39-year-old woman from the Gaza Strip, exhibited severe C-PTSD symptoms resulting from cumulative trauma, including prolonged childhood abuse and repeated exposure to war-related adversities. Employing a mixed-methods approach, the research combined standardized quantitative assessments, such as the International Trauma Questionnaire (ITQ), with in-depth qualitative interviews to evaluate therapeutic outcomes over 19 sessions. Quantitative findings demonstrated significant reductions in core C-PTSD symptoms, including hyperarousal, avoidance, intrusive memories, and emotional dysregulation, alongside notable improvements in psychological flexibility and overall well-being. Qualitative data highlighted the participant’s progress in reconstructing a coherent self-identity, enhancing emotional regulation skills, and developing meaningful social connections. Additionally, the study emphasized the importance of a strong therapeutic alliance in fostering trust, engagement, and sustained therapeutic benefits. These findings suggest that TF-ACT is a promising and comprehensive intervention for addressing the complex challenges associated with trauma. By integrating mindfulness and acceptance-based strategies with value-driven behavioral changes, TF-ACT provides a holistic framework for recovery, addressing both psychological symptoms and relational dynamics. This research contributes to the expanding evidence base for ACT-based therapies in trauma treatment and underscores the need for further clinical trials and longitudinal studies to optimize this intervention for diverse populations affected by complex trauma.