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 yea...