Professional Psychology: Research and Practice, Vol 57(2), Apr 2026, 137-146; doi:10.1037/pro0000670
Third-wave cognitive behavioral therapies (such as acceptance and commitment therapy, ACT) have been growing in clinical use and research support, creating increased demand for training in these methods. However, little research exists evaluating the effectiveness of such trainings over time, particularly with respect to treating children and adolescents. The current pilot study therefore had two main aims. The first sought to examine the utility of an ACT training given to a multidisciplinary team of behavioral health clinicians in a child and adolescent outpatient clinic. ACT theory and skills were presented using both experiential and didactic learning methods, and questionnaires were completed immediately prior to this training, 2 weeks following the training, and 12 weeks following the training. The questionnaire assessed general ACT knowledge and frequency of ACT use with clients, as well as use of specific ACT core concepts. The second aim of this pilot study investigated whether gains in attitudes, knowledge, and ACT usage would be strengthened by participation in an 8-week supervision group. Results revealed a significant increase in self-reported knowledge and ACT use, as well as increased fit of ACT within their theoretical orientation at a 2-week follow-up. These findings were maintained 12 weeks following the training. Clinicians who participated in the supervision group showed significantly higher scores in these domains after 12 weeks, as well as more use of specific ACT skills compared to the general clinic. Overall, results reflect the importance of utilizing experiential learning techniques in combination with didactics to create practical and meaningful opportunities for learning, as well as the importance of providing clinicians with continued support in developing these skills. (PsycInfo Database Record (c) 2026 APA, all rights reserved)