This book contains the most widely used definition of mental retardation in the U.S. and is based on 10 years of use and research by a panel of 11 international experts.
What is mental retardation? How is it diagnosed? Can IQ scores alone determine if a person has mental retardation? What is the cut-off IQ score when deciding whether a person has mental retardation? Since the U.S.... (read more)