“…Based on social learning principles and child and family behaviour therapy, this approach has strong empirical support of intervention with children, particularly those with conduct problems, the most common reason for referral to psychological and psychiatric services in childhood (Aghebati, Gharraee, Hakim, Shoshtari, & Gohari, 2014; de Graaf, Speetjens, Smit, de Wolff, & Tavecchio, 2008; Furlong et al, 2010). In addition to disruptive, aggressive externalising problems in childhood, recent studies have challenged the effectiveness of Triple-P on internalising problems, such as low self-esteem, childhood anxiety and depression, including treatment resistant depression in children victimised by peers (Furlong et al, 2010; Healy & Sanders, 2017; Özyurt, Gencer, Öztürk, & Özbek, 2016). In addition, Wakimizu, Fujioka, Iejima, and Miyamoto (2014) reported that group Triple-P is effective for reducing children’s behavioural problems, changing dysfunctional parenting practices and promoting family empowerment for families raising a child with developmental disabilities (Wakimizu et al, 2014).…”