“…In some studies, self-esteem was not correlated with bullying behaviour (Chen & Wei, 2011;Seals & Young, 2003;Thomaes, Bushman, Stegge & Olthof, 2008;Tritt & Duncan, 1997). However, there are a number of studies reported self-esteem is related to bullying behaviour in either positive (Koh & Wong, 2015;Menon, Tobin, Corby, Menon, Hodges, & Perry, 2007;Salmivalli, 2010;Slee & Rigby, 1993;Volk, Camilleri, Dane, & Marini, 2012;Yang, Kim, Kim, Shin & Yoon, 2006) or negative direction (Donnellan et al, 2005;Özdemir, 2014;Patchin & Hinduja, 2010;Skues, Cunningham & Pokharel, 2005).…”