This final report describes activities and achievements of the PIWI (Parents Interacting with Infants) Outreach Project, a 3-year effort that developed a parent-child play group model and a training approach for personnel implementing this early intervention model. The project trained more than 1,000 early intervention and early head start personnel on the PIWI model. Four geographically and culturally diverse programs served as replication sites. Evaluation indicated the PIWI training provided facilitators with enough information to implement parent-child groups utilizing the assumptions and beliefs of the PIWI model. Facilitators reported the easiest model components to adopt and implement were the philosophy, dyadic focus, triadic strategies, and the structure provided by use of developmental observation topics. Planning and evaluation components were reportedly more difficult to implement. Feedback from participating families was highly positive. Individual sections of the report explain the project's goals and objectives, theoretical and conceptual framework, training program, evaluation methodology and results, dissemination activities, and future activities. Appendices include sample PIWI publications, examples of evaluation forms/instruments, and examples of planning forms and developmental topics. (DB)