This matrix displays the decisions of the United States Supreme Court and the federal statutes most relevant to individuals with disabilities and their families. It is organized according to the core concepts of disability policy as identified by Rud Turnbull and his colleagues at the Beach Center on Disability, the University of Kansas, Lawrence, and as published in a symposium issue on disability policy. See Turnbull, H. R., Beegle, G., & Stowe, M.J. (2001). The core concepts of disability policy affecting families who have children with disabilities, "Journal of Disability Policy Studies," 12(3), 133-143, and related articles in the same issue of the "Journal."