Barbara A. Lewis, Ph.D., CCC-SLP is a Professor in the Department of Psychological Sciences and an Adjunct Professor in the Department of Pediatrics at Case Western Reserve University in Cleveland, Ohio. Her interests include the etiological bases of child language disorders with a focus on genetic, medical and neurological conditions that impact speech and language development. For the past 30 years, Dr. Lewis has been the principal investigator on an NIH funded project investigating the genetic basis of speech sound disorders. She has followed children with speech sound disorders from early childhood to adulthood and studied co-morbid disorders of language impairment, reading disorders, and ADHD. She is also a co-investigator on a longitudinal project examining speech, language, academic, and social outcomes of children exposed to cocaine prenatally. Dr. Lewis teaches courses on language development, articulation and phonology disorders, language and literacy, and language disorders.