Third-Wave CBT Online Intervention for Older Adults Inspired by ACT Principles: An Evaluation of Feasibility and Preliminary Effectiveness in Adults Age 75 and Older

Objectives: This study assessed the feasibility and efficacy of “Online Resilience,” a three-lesson online intervention based on third-wave cognitive behavioral therapy (CBT) principles, inspired by acceptance and commitment therapy (ACT), designed for emotionally healthy adults aged 75 and older. Methods: A randomized controlled study with 62 participants (mean age = 81) divided into Experimental and Control groups. Outcomes included resilience, well-being, mood, and sleep quality, measured pre-, post-, and at one-month follow-up. Results: The intervention showed feasibility among emotionally healthy older adults with higher baseline resilience and well-being, with attrition rates comparable to similar programs. Resilience improvements were significant post-intervention but diminished by follow-up. Sleep quality improved significantly at follow-up, though control group data was unavailable for comparison. Mood stability was maintained in the intervention group while declining in controls. Conclusion: “Online Resilience” shows promise for promoting resilience, mood stability, and sleep quality in older adults, though limited long-term effects and high attrition warrant program refinements. Clinical implications: Brief, self-guided online interventions like this can enhance access to mental health support for older adults, serving as cost-effective preventive tools. However, future programs should address attrition and target individuals with varying baseline psychological resources.