Martha E. Snell|Nancy C. Brady|Lee McLean|Billy T. Ogletree|Ellin Siegel|Lorraine Sylvester|Beth Mineo|Diane R. Paul|Mary Ann Romski|Rose A. Sevcik
Twenty Years of Communication Intervention Research With Individuals Who Have Severe Intellectual and Developmental Disabilities
University of Virginia|University of Kansas|University of North Carolina at Chapel Hill|Western Carolina University|University of Oklahoma|University of Delaware|American Speech Language Hearing Association|Georgia State University|Georgia State University
abstract literature review conducted evaluate current state evidence supporting communication interventions individuals severe intellectual developmental disabilities reviewed 116 articles published 1987 2007 refereed journals meeting three criteria described communication intervention b involved one participants severe intellectual developmental disabilities c addressed one areas communication performance many researchers failed report treatment fidelity assess basic aspects intervention effects including generalization maintenance social validity evidence reviewed indicates 96 studies reported positive changes aspects communication findings support provision communication intervention persons severe intellectual developmental disabilities gaps research reported recommendations future research