Screen Free Time With Friends: a Cluster-randomized Controlled Trial

The Screen Free Time with Friends study is a cluster-randomized controlled trial aiming to promote more time face-to-face with friends and reduce recreational screen media use after school and during weekends among children aged 9-11 years. The primary aim is to investigate the between group difference in change in children's time spend face-to-face with peers. Secondary aims are to investigate the between group difference in change in children's screen media use, physical activity, wellbeing, social relations, smartphone addiction, sleep and parents smartphone use and risk of smartphone addiction.