“…Bullying victimization is associated with mental health problems and bullied children continue to be at risk of poor social, health, and economic outcomes several decades after exposure (Bjereld, Daneback, Gunnarsdóttir, & Petzold, 2014;Kowalski, Giumetti, Schroeder, & Lattanner, 2014;Takizawa, Maughan, & Arseneault, 2014). In a study of time trends during 1994-2006 including 11-15-year-old school children in 21 European and North American countries, the largest decrease in occasional and chronic bullying victimization was measured in the Czech Republic (Molcho et al, 2009).…”