Occurring in 1963, what was the first legislative change that resulted in better understanding, professional education as well as access and safety in institutional facilities; and, which also focused on improving supports for all people with disabilities? Select the correct answer. Developmental Disabilities Assistance and Bill of Rights Act (DD Act) Landmark Court Decision--Wyatt vs. Stickney Declaration on the Rights of Mentally Retarded Persons Willowbrook Consent Decree