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Intelligence quotient (IQ) tests do correlate with one another and that the view that the general intelligence factor (g) is a statistical artifact is a minority one. IQ scores are fairly stable during development in the sense that while a child's reasoning ability increases, the child's relative ranking in comparison to that of other ...
The Cattell–Horn–Carroll theory is an integration of two previously established theoretical models of intelligence: the theory of fluid and crystallized intelligence (Gf-Gc) (Cattell, 1941; Horn 1965), and Carroll's three-stratum theory (1993), a hierarchical, three-stratum model of intelligence. Due to substantial similarities between the ...
[1] [2] [3] According to Cattell's psychometrically-based theory, general intelligence (g) is subdivided into g f and g c. Fluid intelligence is the ability to solve novel reasoning problems and is correlated with a number of important skills such as comprehension, problem-solving, and learning. [4]
Heuer's book Structured Analytic Techniques for Intelligence Analysis, published in 2010 (second edition 2015) and co-authored with Randy H. Pherson, provides a comprehensive taxonomy of structured analytic techniques (SATs) pertaining to eight categories: decomposition and visualization, idea generation, scenarios and indicators, hypothesis generation and testing, cause and effect, challenge ...
The Bell Curve: Intelligence and Class Structure in American Life is a 1994 book by the psychologist Richard J. Herrnstein and the political scientist Charles Murray in which the authors argue that human intelligence is substantially influenced by both inherited and environmental factors and that it is a better predictor of many personal outcomes, including financial income, job performance ...
Another theory that tries to explain the growth of human intelligence is the reduced aggression theory (aka self-domestication theory). According to this strand of thought, what led to the evolution of advanced intelligence in Homo sapiens was a drastic reduction of the aggressive drive. This change separated us from other species of monkeys ...
[1] [2] Intelligence in the normal range is a polygenic trait, meaning that it is influenced by more than one gene, [3] [4] and in the case of intelligence at least 500 genes. [5] Further, explaining the similarity in IQ of closely related persons requires careful study because environmental factors may be correlated with genetic factors.
Stephen J. Ceci is an American psychologist at Cornell University.He studies the accuracy of children's courtroom testimony (as it applies to allegations of physical abuse, sexual abuse, and neglect), and he is an expert in the development of intelligence and memory.