The purpose of this study is to evaluate the effects of "Picture Exchange Communication System" (PECS) training, using a multiple baseline design on the independent initiations of three adults with developmental disabilities and severe communication deficits. All participants increased their independent initiations, although at different…

This book is intended to help parents and professionals understand the communication difficulties of children and adults who do not speak, including those with autism spectrum disorders. The first four chapters describe typical characteristics of nonverbal individuals and offer examples of the authors' approach to communication and the…

This book for speech and language therapists explains interventions for increasing the communication skills of adolescents and adults who have learning disabilities or mild mental retardation. The book provides a British perspective, noting how speech language therapy can contribute to educational requirements such as the British National…