Allison holds dual certification from the American Speech, Language, and Hearing Association (ASHA) as both a speech pathologist and audiologist. She has a wide range of clinical experience having worked in hospitals, schools, and clinics with both adults and children with a variety of communication disorders. The two groups she has worked with most extensively are children with hearing loss and children with Down syndrome. She currently coordinates several research projects that collectively examine factors that impact speech and language development in children who are deaf or hard of hearing from birth to 7 years of age. She also is involved in a longitudinal research project examining the abilities of 16- and 17-year-old students who use cochlear implants.