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The third revision (Form L-M) in 1960 of the Stanford–Binet IQ test used the deviation scoring pioneered by David Wechsler. For rough comparability of scores between the second and third revision of the Stanford–Binet test, scoring table author Samuel Pinneau set 100 for the median standard score level and 16 standard score points for each standard deviation above or below that level.
Psychologist Raymond Cattell defined fluid and crystallized intelligence and authored the Cattell Culture Fair III IQ test. Raymond Cattell (1941) proposed two types of cognitive abilities in a revision of Spearman's concept of general intelligence. Fluid intelligence (Gf) was hypothesized as the ability to solve novel problems by using reasoning, and crystallized intelligence (Gc) was ...
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What does IQ mean?
What is a self-test of intelligence?
What is an intelligence quotient (IQ)?
Who invented the IQ test?
The Wechsler Preschool and Primary Scale of Intelligence ( WPPSI) is an intelligence test designed for children ages 2 years 6 months to 7 years 7 months developed by David Wechsler in 1967. It is a descendant of the earlier Wechsler Adult Intelligence Scale and the Wechsler Intelligence Scale for Children tests.
He claims an IQ of 164, admitting his scores have ranged from 125 to 175, depending upon the cognitive abilities tapped into. [14] Hoeflin attempted, along with Kevin Langdon, to develop an IQ test that could measure adult IQs greater than three standard deviations from the population median, or IQ 145 ( sd 15).
Cognitive Abilities Test. The Cognitive Abilities Test ( CogAT) is a group-administered K–12 assessment published by Riverside Insights and intended to estimate students' learned reasoning and problem solving abilities through a battery of verbal, quantitative, and nonverbal test items. The test purports to assess students' acquired reasoning ...
Mensa is the largest and oldest high-IQ society in the world. [3] [4] [5] It is a non-profit organisation open to people who score at the 98th percentile or higher on a standardised, supervised IQ or other approved intelligence test. [6] Mensa formally comprises national groups and the umbrella organisation Mensa International, with a ...
A self-test of intelligence is a psychological test that someone can take to purportedly measure one's own intelligence . As with other intelligence tests, a self-test of intelligence normally consists of a series of verbal and non-verbal intellectual tasks and puzzles. These tests usually give the taker instructions on how to complete the ...
