By consolidating forty years of Zigler's research with the work of other major researchers in the field of personality, this book provides a single resource for students, researchers, and professionals working in the field of mental retardation. The basic focus is that although cognitive impairment is a defining feature, personality, emotions, and motivation play a significant role in the behavior of individuals with mental retardation. The comprehensive overview of the theory, research, and practical considerations provided in this book has relevance in identifying, educating, and...