In this dissertation I report findings from two studies of the literacy abilities of children with Williams syndrome (WS), a genetic disorder associated with intellectual disability. I had two overarching goals: 1) evaluate the applicability of theories of reading and spelling acquisition developed based on typically developing children to…

Practitioners are increasingly expected to provide reading instruction to students with cognitive disabilities to help them become literate. Whereas a phonics-based approach to reading instruction is regarded as a "best practice" for most young children, its effectiveness for children with cognitive disabilities is unclear. The purpose of this…