 The incidence of depression increases in adolescence. Depression is one of the most common and clinically mental health disorder in this age group. In total, 5-10 of adolescents experience depression episodes, and among 1-2 of the age group depressive symptoms are persistent and long-term Costello et al., 2011; Marttunen Karlsson, 2010. Depression causes significant distress and functional impairment to those affected by it. Furthermore, depressions symptoms with onset in adolescents tend to predict symptom continuation or new episodes in adulthood, and they associate with increased risk of suicide, hospital treatment, psychosocial problems and concurrent anxiety, substance use, and conduct disorders Weissman et al., 1999; Marttunen et al., 2015. 