“…Although developmental delays are relatively common, and the importance of early intervention is well-established (Pinto-Martin, Dunkle, Earls, Fliedner, & Landes, 2005;Ramey & Ramey, 2004), only a small proportion of young children with delays actually receive intervention services. The estimated prevalence of developmental delay is 17%, or one in six, of all children under age 5 (Boyle et al, 2011), and 10% to 12% of children under age 3 (Rosenberg, Ellison, Fast, Robinson, & Lazar, 2013;Sices, 2007); yet the percentage of children in the United States under-availability of programs, narrow eligibility criteria, funding, and poor interagency linkages and coordination (Coulter, Wallace, & Laude, 1993;Halfon et al, 2004;Marshall, Kirby, & Gorski, 2016;Marshall & Mendez, 2014).…”