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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 ...
With the use of linear and nonlinear Confirmatory Factor Analysis, it is showing that the nonlinear model best described the data. [4] The nonlinear model suggests that as g increases, the s factor lowers the overall score and inaccurately represents general intelligence.
In creating his version, Terman also tested additional methods for his Stanford revision, publishing his first official version as The Measurement of Intelligence: An Explanation of and a Complete Guide for the Use of the Stanford Revision and Extension of the Binet–Simon Intelligence Scale (Fancher & Rutherford, 2012) (Becker, 2003).
In 1958, Wechsler published another edition of his book Measurement and Appraisal of Adult Intelligence. He revised his chapter on the topic of IQ classification and commented that "mental age" scores were not a more valid way to score intelligence tests than IQ scores. [69] He continued to use the same classification terms.
John Leonard Horn (September 7, 1928 – August 18, 2006) was a scholar, cognitive psychologist and a pioneer in developing theories of intelligence. The Cattell-Horn- Carroll (CHC) theory is the basis for many modern IQ tests.
An intelligence quotient (IQ) is a total score derived from a set of standardized tests or subtests designed to assess human intelligence. [1] Originally, IQ was a score obtained by dividing a person's mental age score, obtained by administering an intelligence test, by the person's chronological age, both expressed in terms of years and months.
The PASS theory provides the theoretical framework for a measurement instrument called the Das-Naglieri Cognitive Assessment System (CAS), published in 1997. [6] This test, now in a Second Edition (CAS2; 2014, Naglieri, Das & Gold-stein) is designed to provide an assessment of intellectual functioning redefined as four brain-based cognitive processes (Planning, Attention, Simultaneous and ...
It provides an overview of psychometric research using factor analysis to study human intelligence. It has proven highly influential in subsequent intelligence research; in 2009, Kevin McGrew described it as a "seminal treatise". The majority of datasets analyzed in the book were later compiled and made freely available on the Woodcock-Muñoz ...