This book celebrates two triumphs in modern psychology: the successful development and application of a solid measure of general intelligence; and the personal courage and skills of the man who made this possible - Arthur R. Jensen from Berkeley University. The volume traces the history of intelligence from the early 19th century approaches, to the most recent analyses of the hierarchical structure of cognitive abilities, and documents the transition from a hopelessly confused concept of intelligence to the development of an objective measure of psychometric g. The contributions illustrate the impressive power g has with respect to predicting educational achievement, getting an attractive job, or social stratification. The book is divided into six parts as follows: Part I presents the most recent higher-stream analysis of cognitive abilities, Part II deals with biological aspects of g, such as research on brain imaging, glucose uptake, working memory, reaction time, inspection time, and other biological correlates, and concludes with the latest findings in g-related molecular genetics. Part III addresses demographic aspects of g, such as geographic-, race-, and sex-differences, and introduces differential psychological aspects as well. Part IV concentrates on the g nexus, and relates such highly diverse topics as sociology, genius, retardation, training, education, jobs, and crime to g. Part V contains chapters critical of research on g and its genetic relationship, and also presents a rejoinder. Part VI looks at one of the greatest contemporary psychologists, Professor Emeritus Arthur R. Jensen as teacher and mentor.

However, Jensen does not draw back from its most controversial conclusions - that the average differences in IQ and other abilities found between sexes and racial groups have a substantial hereditary component, and that these differences have important societal consequences.

High IQs don't improve the world. Adaptive intelligence does, because it prioritizes the common good over individual success.

"Geary also explores a number of issues that are of interest in modern society, including how general intelligence relates to academic achievement, occupational status, and income."--BOOK JACKET.

In this revised and updated edition of Hunt's classic textbook, Human Intelligence, two research experts explain how key scientific studies have revealed exciting information about what intelligence is, where it comes from, why there are individual differences, and what the prospects are for enhancing it. The topics are chosen based on the weight of evidence, allowing readers to evaluate what ideas and theories the data support. Topics include IQ testing, mental processes, brain imaging, genetics, population differences, sex, aging, and likely prospects for enhancing intelligence based on current scientific evidence. Readers will confront ethical issues raised by research data and learn how scientists pursue answers to basic and socially relevant questions about why intelligence is important in everyday life. Many of the answers will be surprising and stimulate readers to think constructively about their own views.

The history of testing mental abilities has seen the dominance of two contrasting approaches, psychometrics and neuropsychology. These two traditions have different theories and methodologies, but overlap considerably in the tests they use. Historically, psychometrics has emphasized the primacy of a general factor, while neuropsychology has emphasized specific abilities that are dissociable. This issue about the nature of human mental abilities is important for many practical concerns. Questions such as gender, ethnic, and age-related differences in mental abilities are relatively easy to address if they are due to a single dominant trait. Presumably such a trait can be measured with any collection of complex cognitive tests. If there are many specific mental abilities, these would be much harder to measure and associated social issues would be more difficult to resolve. The relative importance of general and specific abilities also has implications for educational practices. This book includes the diverse opinions of experts from several fields including psychometrics, neuropsychology, speech language and hearing, and applied psychology.

There are currently several debates taking place simultaneously in various fields of psychology which address the same fundamental issue: to what extent are the processes and resources that underlie higher cognition domain-general versus domain-specific? Extreme Domain Specificity argues that people are effective thinkers only in contexts which they have directly experienced, or in which evolution has equipped them with effective solutions. The role of general cognitive abilities is ignored, or denied altogether. This book evaluates the evidence and arguments put forward in support of domain specific cognition, at the expense of domain generality. The contributions reflect a range of expertise, and present research into logical reasoning, problem solving, judgement and decision making, cognitive development, and intelligence. The contributors suggest that domain general processes are essential, and that domain specific processes cannot function without them. Rather than continuing to divide the mind’s function into ever more specific units, this book argues that psychologists should look for greater integration and for people’s general cognitive skills to be viewed as an integral part of their lives. Integrating the Mind will be valuable reading for students and researchers in psychology interested in the fields of cognition, cognitive development, intelligence and skilled behaviour.