William O. Haynes has been teaching courses in speech-language pathology at the university level for over thirty years and is currently a professor at Auburn University. Having written over fifty scientific articles and textbooks, Dr. Haynes is the author of Communication Disorders in the Classroom (Jones & Bartlett, 2006), Diagnosis and Evaluation in Speech Pathology (Allyn & Bacon, 2003) and Communication Development (Williams and Wilkins, 1998). Carole E. Johnson is a professorat Auburn University and has been teaching courses in audiology at the university level for almost twenty years. She has over 45 publications and has successfully written federal grants for many of her projects. Dr. Johnson is the author of Handbook of Outcomes Measurement in Audiology (Singular-Thomson, 2002) and Guidebook for Support Programs in Aural Rehabilitation (Singular-Thompson, 1999).