The effectiveness of interventions for youth that activate the social network: a meta-analytic study. - Koper, Natasha; van der Heijden, Roos M.; Donk, Sophie; Kieu, Thao; Creemers, Hanneke E.; van Dam, Levi; Branje, Susan; Stams, Geert Jan J. M. (Applied Developmental Science, 2025)