“…Because participants’ engagement in any parenting intervention is a key predictor of success, researchers have assessed both quantitative and qualitative aspects of such engagement. Typically, such measures have relied on records of attendance, a variety of ratings of engagement by interventionists, completed homework, or parents’ reports (Baydar, Reid, & Webster-Stratton, 2003; Dumas & Albin, 1986; Garvey, Julion, Fogg, Kratovil, & Gross, 2006; Heinicke et al, 2000; Korfmacher et al, 2008; Nix, Bierman, McMahon, & The Conduct Problems Prevention Research Group, 2009; Nock & Ferriter, 2005; Raikes et al, 2006; Wen, Korfmacher, Hans, & Henson, 2010). But in behavioral interventions, where mothers are taught specific parenting techniques, such measures, although certainly valuable, do not capture the consistency of observed maternal behavior with the received instructions or the amount of such behavior actually delivered to the child over the course of the intervention.…”