A randomized controlled trial of a home and school‐based intervention for selective mutism – defocused communication and behavioural techniques

Randomized controlled psychosocial treatment studies on selective mutism (SM) are lacking.Overall, 24 children with SM, aged 3-9 years, were randomized to 3 months treatment (n = 12) or wait list (n = 12). Primary outcome measure was the School Speech Questionnaire.A significant time by group interaction was found (p = .029) with significantly increased speech in the treatment group (p = .004) and no change in wait list controls (p = .936). A...