“…Internet-based parent training interventions has a lot of benefits over traditional interventions, such as overcoming geographical barriers for parents to receive psychoeducation, higher fidelity, greater accessibility, convenience, and reduced time and costs (Aqdassi, Pouretemad, Fathabadi, & Sadeghi, 2019;Barak & Grohol, 2011;Breitenstein, Gross, & Christophersen, 2014;Hammond et al, 2012;Khanna, Aschenbrand, & Kendall, 2007;Ristkari et al, 2019). Internet-based interventions have already been used to treatment autism spectrum disorder symptoms and its effectiveness has been demonstrated (Ashburner, Vickerstaff, Beetge, & Copley, 2016;Baharav & Reiser, 2010;Boisvert, Lang, Andrianopoulos, & Boscardin, 2010;Gibson, Pennington, Stenhoff, & Hopper, 2010;Hamad, Serna, Morrison, & Fleming, 2010;Lindgren et al, 2016;Shire, Worthman, Shih, & Kasari, 2020;Speyer et al, 2018;Sutherland, Trembath, & Roberts, 2018;Vismara, McCormick, Young, Nadhan, & Monlux, 2013). However, no studies exist on internet-based parent training efficacy for children with PDNAS and the aim of this study is to compare treatment outcomes of an internet-based intervention with a center-based intervention for young children with PDNAS.…”