“…Lencl & Matuga, 2010) and is negatively associated with classroom and school climate (e.g., Cornell et al, 2015; see also the reviews by Hong & Espelage, 2012; Thapa, Cohen, Guffey, & Higgins-D’Alessandro, 2013). Consequently, children and adolescents in classrooms where bullying occurs suffer from a negative learning climate and are deprived of basic learning opportunities (e.g., Quesel, Möser, & Husfeld, 2014). Their opportunities to actively participate in shaping school life and making decisions (CRC, §12.1) are compromised because part of the students (victims, helpers of victims, passive bystanders) live in fear of the bullies and their supporters, who themselves have become powerful enough to undermine equity and equality in classrooms and schools.…”