“…In addressing Aim 1, this study corroborates and extends the profile of communicative skills observed in older toddlers with ASD [e.g., Lord, 1995;Lord, Risi, & DiLavore, 2006;Mundy et al, 1987;Sigman & Ungerer, 1984;Stone, Ousley, Yoder, Hogan, & Hepburn, 1997;Wetherby, Prizant, & Hutchinson, 1998;Wetherby et al, 2004], and reported in the largely retrospective studies of children in the second year of life [Baranek, 1999;Klin et al, 1992;Maestro et al, 2002;Osterling et al, 2002;Volkmar et al, 1985;Wetherby et al, 2007]. That is, children who meet diagnostic criteria for ASD late in their second year of life show below average levels of performance in the abilities to respond to others' speech, to use gestures and manage affect, gaze and reciprocity; to express communicative functions; and to employ symbolic play schemes.…”