With much support from families, professionals, and the National Institute on Deafness and Other Communication Disorders, the Outcomes of Children with Hearing Loss (OCHL) project became the largest study in the nation focusing on outcomes of children who are hard of hearing. Researchers at the University of Iowa, Boys Town National Research Hospital, and the University of North Carolina are now continuing the work OCHL started with the Complex Listening and Outcomes of School-Age Children who are Hard of Hearing studies. Read about our ongoing progress under Publications and learn more about our studies via the links to the right!

The OCHL study examined the hearing, speech, language, and psychosocial outcomes of children who are hard of hearing with respect to access to early intervention.

The OSACHH study follows OCHL families into elementary school to understand the impact of early intervention on children's later academic and communication outcomes.

The Complex Listening study strives to identify how children from OCHL use their language and memory to support listening in noisy, complex environments.