“…One of the most widely used evidence-based interventions for alleviating problem behaviour in children with ASD is behavioural interventions based on operant conditioning principles (Boyd, McDonough, & Bodfish, 2011;Bregman, Zager, & Gerdtz, 2005;Campbell, 2003;Green et al, 2006;Horner et al, 2002;Myers & Johnson, 2007). In particular, within the range of these interventions that aim to reduce problem behaviour, there appears to be a shift from child-focused behavioural interventions, which are typically carried out by trained therapists to focus exclusively on teaching the target child (e.g., early intensive behavioural intervention [EIBI] programmes), towards an increasing recognition of parent-focused behavioural interventions, which are provided to train parents in the use of appropriate behavioural strategies with their child (e.g., the Stepping Stones Triple P [SSTP] programme) (e.g., Birkin, Anderson, Moore, & Seymour, 2004;Brookman-Frazee, Stahmer, BakerEriczén, & Tsai, 2006;Brookman-Frazee, Vismara, Drahota, Stahmer, & Openden, 2009;Francis, 2005;Matson, Mahan, & Matson, 2009;Schreibman, 2000;Schreibman & Anderson, 2001).…”