The final report of the Regional Intervention Program (RIP) for Preschoolers and Parents, Expansion Project, describes activities of the project's third year. The project provided direct services to 363 handicapped children (aged 0 through 8 years) as well as preservice and inservice training to almost 10,000 regular or special educators. Major sections deal with each of the three program components (community awareness and early identification, RIP replication, and RIP related field based training) in terms of development, implementation, and evaluation. Also included is the text of a study titled, "Long Term Effects of Oppositional Child Treatment with Mothers as Therapists and Therapist Trainers" by P. Strain, a followup study of 40 behaviorally disordered children who were clients of the RIP program as preschoolers. Among conclusions of the study were that Ss' social interactions in the home were positive and their nonsocial behavior appropriate, and that there were no differences in teachers' rating of Ss' behavior and class peers. The appendix includes various program materials including brochures, contracts, parental consent forms, questionnaires, and inservice program schedules. (DB)