International Review of Research in Developmental Disabilities is an ongoing scholarly look at research into the causes, effects, classification systems, syndromes, etc. of developmental disabilities. Contributors come from wide-ranging perspectives, including genetics, psychology, education, and other health and behavioral sciences. Volume 41 of the series offers chapters on a variety of themes. *Provides the most recent scholarly research in the study of developmental disabilities *A vast range of perspectives is offered, and many topics are covered *An excellent resource for academic researchers