The Effect of Early Intervention on Academic Achievement of Hearing-Impaired Children

Objective. This population-based study assessed the relationship between characteristics of early intervention programs for hearing-impaired children and academic achievement. Methodology. The study was conducted on the elementary school-age population of six regions of the province of Quebec. Of the 301 hearing-impaired children registered, 112 met the eligibility criteria and participated in the study. The characteristics of early intervention which had been assessed were: age of initial access, the intensity, target and nature of services, service setting, coordination mechanisms, communication mode and parental compliance. Results. After adjustment for child and family characteristics and the other service variables studied, higher academic achievement was found to be significantly associated with services that (a) were initiated before children reached the age of two, (b) were parent-centered rather than child-centered, and (c) emphasized auditory intervention and an oral mode of communication. The results also showed that the socioeconomic environment in which the children lived significantly influenced the effect of certain characteristics of early intervention programs. The present study identified service characteristics with regard to specialized intervention and service delivery conditions that could lead to more effective early intervention programs.