A child who is hard of hearing speaking the same passage at 3 and 7 years of age. Notice how much clearer her speech becomes due to consistent use of hearing aids.

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.