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Focus on Mental Retardation Research is written by Marina I. Carson and published by Nova Publishers. It's available with International Standard Book Number or ISBN identification 1600216471 (ISBN 10) and 9781600216473 (ISBN 13).
Mental retardation is a term for a pattern of persistently slow learning of basic motor and language skills ("milestones") during childhood, and a significantly below-normal global intellectual capacity as an adult. One common criterion for diagnosis of mental retardation is a tested intelligence quotient (IQ) of 70 or below. This book examines new and critical research and issues in the field.