“…The evidence base for PCIT is extensive, with four decades of evidence supporting both its efficacy in laboratory-based settings (Eyberg & Robinson, 1982;Nixon, Sweeney, Erickson, & Touyz, 2003;Schuhmann, Foote, Eyberg, Boggs, & Algina, 1998) and effectiveness in applied, real-world environments (McNeil & Hembree-Kigin, 2010;Wallace, Quetsch, Robinson, McCoy, & McNeil, 2018). Positive outcomes of PCIT have included decreased rates of disruptive behaviour in home (McNeil, Capage, Bahl, & Blanc, 1999) and school-based settings (McNeil, Eyberg, Eisenstadt, Newcomb, & Funderburk, 2010), as well as decreased rates of disruptive behaviour in siblings of treated children (Brestan, Eyberg, Boggs, & Algina, 1997), across cultures (Capous, Wallace, McNeil, & Cargo, 2016), and up to 6 years following intervention (Boggs et al, 2004;Hood & Eyberg, 2003).…”