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The Wechsler Adult Intelligence Scale ( WAIS) is an IQ test designed to measure intelligence and cognitive ability in adults and older adolescents. [1] The original WAIS (Form I) was published in February 1955 by David Wechsler and Chief Psychologist at Bellevue Hospital (1932–1967) in NYC as a revision of the Wechsler–Bellevue ...
IQ classification. Score distribution chart for sample of 905 children tested on 1916 Stanford–Binet Test. IQ classification is the practice of categorizing human intelligence, as measured by intelligence quotient (IQ) tests, into categories such as "superior" or "average". [1] [2] [3] [4]
- Above average
- Upper Extreme
- Well Above Average
- Average
An intelligence quotient (IQ) is a total score derived from a set of standardised tests or subtests designed to assess human intelligence. The abbreviation "IQ" was coined by the psychologist William Stern for the German term Intelligenzquotient, his term for a
The Wechsler Intelligence Scale for Children ( WISC) is an individually administered intelligence test for children between the ages of 6 and 16. The Fifth Edition (WISC-V; Wechsler, 2014) is the most recent version. The WISC-V takes 45 to 65 minutes to administer. It generates a Full Scale IQ (formerly known as an intelligence ...
The concepts of fluid intelligence ( gf) and crystallized intelligence ( gc) were introduced in 1963 by the psychologist Raymond Cattell. [1] [2] According to Cattell's psychometrically -based theory, general intelligence ( g) is subdivided into gf and gc. Fluid intelligence is the ability to solve novel reasoning problems and is correlated ...
In psychology, human intelligence is commonly assessed by IQ scores that are determined by IQ tests. In general, higher IQ scores are associated with better outcomes in life. However, while IQ test scores show a high degree of inter-test reliability, and predict certain forms of achievement effectively, their construct validity as a holistic measure of human intelligence is considered dubious.
Flynn effect. The Flynn effect is the substantial and long-sustained increase in both fluid and crystallized intelligence test scores that were measured in many parts of the world over the 20th century, named after researcher James Flynn (1934–2020).
