The timing and magnitude of symptom improvements during an Internet-delivered transdiagnostic treatment program for anxiety and depression.

A substantial number of people who receive internet-delivered treatments appear to experience rapid, large, and clinically significant symptom improvement early in treatment. These findings add to our theoretical understanding of symptom improvements during psychotherapy, and further research investigating the mechanisms of such change will inform the development of more effective treatments. (PsycInfo Database Record (c) 2023 APA, all rights reserved).