Alan G. Kamhi, Ph.D., is Adjunct Professor in the Department of Communicative Disorders at Northern Illinois University. Since the mid-1970s, he has conducted research on many aspects of developmental speech, language, and reading disorders. He has written several books with Hugh Catts on the connections between language and reading disabilities as well as two books with Karen E. Pollock and Joyce Harris on communication development and disorders in African American speakers. His current research focuses on how to use research and reason to make clinical decisions in the treatment of children with speech, language, and literacy problems. He began a 3-year term as the Language Editor for the "Journal of Speech, Language, and Hearing Research" in January 2004 and served as Editor of "Language, Speech, and Hearing Services in Schools" from 1986 to 1992. Karen E. Pollock, Ph.D., is Professor and Chair of the Department of Speech Pathology and Audiology at the University of Alberta. She has taught graduate courses, conducted research, and published in the area of child phonology for almost 20 years. In addition to co-editing two books with Alan G. Kamhi and Joyce Harris on communication development/ disorders and literacy in African American children, she served as associate editor in the area of phonology for the "Journal of Speech, Language, and Hearing Research" from 1995 to 1997 and is currently an editorial consultant for several scholarly professional journals. Her recent research interests include vowel errors in children with phonological disorders, phonological variation in southern and African American English dialects, and speech-language development in internationally adopted children. Marc E. Fey, Ph.D., Professor, Hearing and Speech Department, University of Kansas Medical Center, Mailstop 3039, 3901 Rainbow Boulevard, HC Miller Building, Kansas City, Kansas 66160Dr. Marc E. Fey is Professor of Hearing and Speech at the University of Kansas Medical Center. He received his Ph.D. from the Department of Audiology and Speech Sciences at Purdue University in 1981. Along with his articles, chapters, and software programs, Dr. Fey has published three books on language intervention. He holds distinguished alumnus status from the University of Georgia, Purdue University, and Wichita State University, as well as the Honors of the American Speech-Language-Hearing Association. 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)a 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. "