“…The majority of studies conducted on the efficacy of the Mystery Motivator have employed an individual independent contingency or an independent group contingency to facilitate behavioral and academic change (DeMartini-ScuUy, Bray, & Kehle, 2000;Kehle, Madaus, Baratta, & Bray, 1998;LeBlanc, 1998;Madaus, Kehle, Madaus, & Bray, 2003;Matovic, 2010;Moore, Waguespack, Wickstrom, Witt, & Gaydos, 1994;Mottram, Bray, Kehle, Broudy, & Jenson, 2002;Musser, Bray, Kehle, & Jenson, 2001;Robinson & Sheridan, 2000). Because reinforcement is delivered individually in such contexts, these interventions can be time intensive, inefficient, and complicated to implement.…”