“…PISA point to the challenge of improving boys' academic performance (OECD, 2014). In Norway girls outperform boys in all subject, except from physical education (Bakken et al, 2008). In the case of bullying, there is a general tendency for boys to be more involved both as bullies and victims at all ages (Wendelborg et al, 2014, Seals and Young, 2003, Erdur-Baker, 2010, Salmivalli and Nieminen, 2002However, some researchers have found that girls are more involved in indirect or social bullying (Lagerspetz et al, 1988, Björkqvist et al, 1992, but this findings is not consistent (Craig et al, 2009).…”