This final report presents the outcomes of Project INSITE, a family-centered home intervention model designed to provide training to early intervention/childhood professionals working with infants and young children with multidisability sensory impairments and their families. In the INSITE model, an early intervention professional visits the home of a child with sensory impairments and additional disabilities to work with the family. Parents and the professional work together as team members in determining goals, writing/reviewing the Individualized Family Service Plan or the Individualized Education Program, carrying out and monitoring activities, and preparing for transition to school programs. The report presents information on the goals, objectives, and activities of the project over the 3-year grant period. The conceptual framework for the project is discussed. A complete description of the model, replication sites, dissemination activities, and training activities is provided. The methodological/logistical problems that were faced and how they were solved are reviewed. The evaluation findings of the project are presented, and data from a validation study are included (1991-92, n=52 children; 1992-93, n=81 children; 1993-94, n=34 children). The project's impact is noted and future activities are discussed. Appendices include: sample newsletters, a family resource notebook, the INSITE Model overview, tables of contents of a family resource notebook and two volumes on the INSITE Program, a sample agenda of an INSITE workshop, an INSITE training format overview, and detailed INSITE data reports. (Contains 19 references.) (CR)