“…Obtaining and maintaining a sufficient level of program integrity is an important part of Re-ART because research shows that the degree of program integrity can affect treatment outcomes (e.g., Arkoosh et al, 2007; Durlak & DuPre, 2008; Goense, Assink, Stams, Boendermaker, & Hoeve, 2016; Hoogsteder, Van Horn, Stams, Wissink, & Hendriks, 2016; Landenberger & Lipsey, 2005). Program integrity refers to the delivery of the intervention as it is intended, including its content, duration, frequency, and scope (Duerden & Witt, 2012).…”