“…In contrast to children from the general population, foster children are characterized by high levels of internalizing and externalizing behaviour problems ( Carbone, Sawyer, Searle, & Robinson, 2007 ; Goemans, Van Geel, Van Beem, & Vedder, 2016 ; Pritchett et al, 2016 ). Exact numbers differ across studies, but proportions of foster children with clinically significant mental health problems have been reported to be over one-third ( Maaskant, Van Rooij, & Hermanns, 2014 ), almost half ( Burns et al, 2004 ) or even over half ( Tarren-Sweeney & Hazell, 2006 ). A recent meta-analysis reported that approximately 40% of the foster children show mental health problems ( Vasileva & Petermann, 2016 ).…”