“…ADHD is characterized by developmentally inappropriate symptoms of inattention and/or hyperactivity/impulsivity, symptom onset prior to age 12, and impairment in at least two settings (American Psychiatric Association, 2013). Research has consistently indicated that children and adolescents with ADHD often experience academic difficulties (e.g., Altszuler et al, 2017;Arnold et al, 2020;Kent et al, 2011), peer relationship/ social difficulties (e.g., Aduen et al, 2018;de Boo & Prins, 2007;McQuade & Hoza, 2008Mikami et al, 2007;Ros & Graziano, 2018), and increased levels of conflict with parents and family (e.g., Altszuler et al, 2017;Churchill et al, 2018;Haydicky et al, 2015;Huang et al, 2018;Johnston & Lee-Flynn, 2011). Given the potential for poor long-term outcomes for children with ADHD, effective evidence-based treatment is essential to ensure the best possible outcomes for this group.…”