The Service Delivery Assessment (SDA) model is a human services evaluation tool which offers a viable alternative to more traditional approaches and is appropriate for small local evaluations as well as large national studies. There are five phases to an SDA study: assignment, pre-assessment, design, analysis, and communication of the findings.…

The report describes second-year project activities of the Early Intervention Research Institute (EIRI) at Utah State University, relating to a 5-year project to conduct 16 longitudinal studies of the effects and costs of alternative types of early intervention with handicapped children. Six of the studies are to investigate effects of varying the…