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Today, the Cattell–Horn–Carroll theory is widely accepted as the most comprehensive and empirically supported theory of cognitive abilities, informing a substantial body of research and the ongoing development of IQ (Intelligence Quotient) tests (McGrew, 2005). [6]
The Cattell Culture Fair Intelligence Test (like the Raven's Progressive Matrices) is not completely free from the influence of culture and learning. [7] Some high-IQ societies , such as The Triple Nine Society , accept high scores on the CFIT-III as one of a variety of old and new tests for admission to the society.
The concepts of fluid and crystallized intelligence were further developed by Cattell and his former student John L. Horn. [6] [7] [3] Most of the intelligence testing had mainly been focused on children, and young adults. Cattell and Horn wanted to see how intelligence changed and developed when aging took place on an individual.
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.
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.
Cattell Culture Fair III, an IQ test constructed by Raymond Cattell, tested for both fluid and crystallized intelligence. Cattell–Horn–Carroll theory, a psychological theory. Cattell Infant Intelligence Scale, a developmental intelligence test for young children
Psyche Cattell (August 2, 1893 – April 17, 1989) was an American psychologist who studied children and aimed to develop intelligence tests for infants. [1] [2] [3 ...
Cattell founded the Laboratory of Personality Assessment and Group Behavior. [44] In 1949, he and his wife founded the Institute for Personality and Ability Testing (IPAT). Karen Cattell served as director of IPAT until 1993. Cattell remained in the Illinois research professorship until he reached the university's mandatory retirement age in 1973.