“…Importantly, behavioral parent training programs have proven efficacious in improving parentchild interactions and, in turn, reducing children's externalizing behaviors (see review by McMahon et al, 2006), and the effects appear to be maintained over time (e.g., Long, Forehand, Wierson, & Morgan, 1994;Routh, Hill, Steele, Elliot, & Deweys, 1995;Webster-Stratton, 1992). Accordingly, behavioral parent training programs are now considered "wellestablished" interventions for the treatment of children's externalizing behaviors (see reviews by Brestan & Eyberg, 1998;Burke et al, 2002;McMahon et al, 2006).…”