Author Description

Richard Lynn, one of the leading researchers on intelligence and personality and the author of several major books on IQ and personality research, summarizes in this landmark work what one scholar has described as “the definitive study of race differences in intelligence.” Since 1977, Richard Lynn has blazed a pioneering trail of research on racial differences in IQ. In previous books and scientific articles, Lynn has explored dysgenic trends in intelligence, sex differences in IQ, psychopathic personality traits, and the dimensions of personality and national character. In this book, Lynn analyzes the results of over 500 published studies that span tem population groups—races and sub-races worldwide—in what is certain to be a path-breaking book for IQ experts and educated laypersons alike. This comprehensive review of worldwide racial differences of general intelligence explores the formation of races, meaning of intelligence, validity of race differences in IQ, environmental and genetic correlates of intelligence, the relationship between brain size and intelligence, the evolution of racial differences in intelligence, and the factor of racial hybrids. In a relentlessly methodical approach, Lynn expands upon an extensive array of research findings from the biomedical and social sciences, including the latest studies from the fields of behavior genetics, evolutionary psychology, and anthropology in reaching his thought-provoking conclusions. Extensively referenced, this exhaustive study of race and IQ is a milestone accomplishment and should serve as the yardstick by which future research is measured. "The IQs of the races can be explained as having arisen from the different environments in which they evolved, and in particular from the ice ages in the northern hemisphere exerting selection pressures for greater intelligence for survival during cold winters; and in addition from the appearance of mutations for higher intelligence appearing in the races with the lar