A. Lynn Williams, Ph.D., joined the Communicative Disorders faculty of East Tennessee State University in 1995 following academic positions at Oklahoma State University and California State University at Fullerton. Most of her research over the past decade has involved clinical investigations of models of phonological treatment for children with severe to profound speech disorders. She developed an alternative model of phonological intervention, called multiple oppositions, which she has examined in National Institutes of Health (NIH)-funded treatment efficacy studies and recently has compared with other models of contrastive phonological intervention. Dr. Williams is the author of SCIP:… Sound Contrasts in Phonology, a phonological intervention software program that was funded through the National Institute of Deafness and Communicative Disorders.