Language, Memory, and Cognition in Infancy and Early Childhood - Google Books

http://books.google.de/books?id=9rwmg-maFdYC&pg=PA37&dq=%22Bayley+Scales+of+Infant+Development%22&hl=de&ei=qIBITevYOIjDswbK6vX0A

Language, cognition, and memory are traditionally studied together prior to a researcher specializing in any one area. They are studied together initially because much of the development of one can affect the development of the others. Most books available…