“…Challenges to scale-up are adequate funding, as well as facility and leadership capacity (Lauter and Rice, 2008; Bumbarger & Perkins, 2008; Rohrbach & Dyal, 2015), but strong collaboration between school districts, school principals, and preschool providers can help scale-up efforts to achieve positive results for children (Lauter and Rice, 2008; Hayakawa, Englund, Candee, Lease, Sullivan, Warner-Richter, et al, 2015). Additionally, there are institutional and political factors that influence the capacity to scale, including cost, organizational commitment, and service fragmentation (Reynolds, Hayakawa, Ou, Mondi, Englund, Candee et al, in press; Cooper, Slavin, & Madden, 1997; Domitrovich & Greenberg, 2000; Greenberg, 2010).…”