Anxiety is the most prevalent childhood psychopathology. Cognitive Behavioral Therapy (CBT) is considered the most effective treatment but outcomes remain variable. This study investigated children's communication patterns in child‐therapist conversations and whether changes in these patterns, from less rigid to more flexible, were associated with better treatment outcomes.. To read the full article, log in using your NHS Athens details. To access full-text: click “Log in/Register” (top right hand side). Click ‘Institutional Login’ then select 'OpenAthens Federation', then ‘NHS England’. Enter your Athens details to view the article.