“…Such children need help to develop skills in establishing their communication, receptive understanding and social interaction behaviours (Blum & Talib, 2006;Rogers, 1998aRogers, , 1998b). Chawarska and colleagues have suggested that a later age of parental recognition is associated with worse outcomes (Chawarska et al, 2007), although this is yet to be fully confirmed through trials of early intervention.…”