This final report describes the Mastery Project, which developed, implemented, and field tested a comprehensive model to promote the mastery orientation and functional independence of students, ages 11-20, with physical and multiple disabilities. The model includes systematic procedures to: (1) facilitate assessment of students' functional capabilities in home, community, school, and friendship domains; (2) assist students to identify and select personal goals and apply problem-solving and planning strategies; (3) enable students to direct assistance provided by others; (4) promote the ability of parents to support students' independence and autonomy; and (5) create opportunities for students to participate in community-based activities and discuss disability-related issues with successful adult mentors with similar challenges. The Mastery Project was implemented in 2 school districts with 30 students and their parents. Students were provided with weekly coaching to accomplish self-assessments, goal identification, and goal achievement. Students were also introduced to mentors, and parents were provided with monthly coaching and written materials. The project has been adopted by the Portland (Oregon) public schools. (Contains 311 references.) (DB)