“…Early language proficiency is a critical developmental skill given its stability from infancy through adolescence (Bornstein, Hahn, Putnick, & Suwalsky, ), and its role as a mediator in the development of other cognitive processes in early childhood (Graham, San Juan, & Khu, ; Wade, Browne, Plamondon, Daniel, & Jenkins, ). Early language has spillover effects in multiple domains of childhood and adulthood adaptive functioning, including achievement (Duncan et al, ; Scarborough, Neuman, & Dickinson, ), psychiatric problems (Beitchman et al, ; Cannon et al, ) and educational/occupational outcomes (Johnson, Beitchman, & Brownlie, ).…”