“…There is substantial research that supports each tier of practices included in the Pyramid Model (see for discussion) and published descriptions on the implementation of the model within early care and education programs (Branson & Demchak, 2011 ;Frey, Park, Browne-Ferrigno, & Korfhage, 2010 ;Hemmeter, Fox, Jack, Broyles, & Doubet, 2007 ). In addition, a randomized controlled experiment has been conducted to examine outcomes associated with the implementation of the Pyramid Model in classrooms that included children with disabilities (Hemmeter, Snyder, Fox, & Algina, 2011 ).…”