Learning to communicate using speech and language is a primary developmental task for young children. Delays in the acquisition of language are one of the earliest indicators of developmental deficits that may affect academic and social outcomes for individuals across the life span. In the period since the passage of PL 99-457, significant…

This article summarizes results of a 1998 conference which reviewed research on screening and diagnosis of autism spectrum disorders and identifies promising areas of research especially the search for the ultimate diagnostic indicator, infant screening and diagnosis, the role of sensory-motor disorders, diagnosis of co-occurring disorders,…

The written testimony of the authors before the President's Commission on Excellence in Special Education in April, 2002, identifies five areas of needed effort in early childhood special education research: (1) early identification and eligibility; (2) services; (3) outcomes; (4) infrastructure; and (5) the research funding process. Specific…