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Download full textCampbell, Janet; Cawthon, Laurie; Keenan, Trisha; Lyons, Dorothy; Schrager, Laura – 1998
This report describes options for study designs to evaluate the effect of early intervention on infants and toddlers, birth to three, with disabilities or developmental delays and their families in Washington state. Information was gathered from extensive literature reviews, a survey of local assessment efforts in Washington, a technical data…
Descriptors: Cross Sectional Studies, Developmental Delays, Disabilities, Early Intervention
