Effects of an ACT-based online intervention on university students' psychological flexibility, well-being and study skills

Online interventions based on Acceptance and Commitment Therapy (ACT), combining psychological flexibility and study skills training, show promise in supporting university students' well-being and studying. However, less is known about the factors behind their effectiveness. This study examines the impact of an ACT-based online intervention on students' well-being and study skills and explores participants' experiences of the intervention and its components based on psychological flexibility processes. Using a mixed-methods approach, the findings show improvements in study skills, psychological flexibility, and emotional and psychological well-being compared to a control group. Students found ACT components and exercises supportive of their well- being and learning in varied ways. Reflecting on personal values clarified what mattered in life and studies while practising self-compassion helped reduce self-criticism and accept feelings and thoughts. Mindful presence supported coping with stressful situations, and peer support was seen as a meaningful part of the intervention. The benefits of the intervention were shaped by individual differences, highlighting personal factors that influence how students engage with and benefit from the intervention.