In this thesis, deliberate self-harm (DSH) is defined as the deliberate, culturally undesirable, self-performed, instantaneous, and direct destruction of physical tissue that is lowlethal and free of overdose, self-poisoning, or suicidal intent. DSH is a major mental health condition that affects young people all over the world (Hawton et al., 2006; De Leo & Heller, 2004), and it is linked to a number of negative psychological and social consequences (DOnofrio, 2007; Hawton et al., 2006). Thi...