Search results
Results from the WOW.Com Content Network
There are two versions of the NART devised for use in North America; both feature a modified word list and re-standardization of predicted IQ. The NART-R, published in 1989, was designed for use in the United States and Canada. [6] [7] NART-R comprises an extended list of 61 words chosen to have irregular pronunciations in North American English.
David Wechsler, developer of the Wechsler–Bellevue Scale of 1939 (which was later developed into the Wechsler Adult Intelligence Scale) popularized the use of "deviation IQs" as standard scores of IQ tests rather than the "quotient IQs" ("mental age" divided by "chronological age") then used for the Stanford–Binet test. [67]
In standardized samples, WTAR scores were shown to correlate highly with measures of verbal IQ (r = .75), verbal comprehension (r = .74), and full scale IQ (r = .73). [2]
The non-verbal performance scale was also a critical difference from the Binet scale. The earlier Binet scale had been persistently and consistently criticized for its emphasis on language and verbal skills. [6] Wechsler designed an entire scale that allowed the measurement of non-verbal intelligence. This became known as a performance scale.
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 test is currently in its second edition, published in 2015. [2]Both editions are suitable for evaluation of intellectual giftedness, [3] and high scores are accepted as qualifying evidence for high IQ societies such as Intertel (min. IQ ≥ 135) and American Mensa (min. IQ ≥ 130).
A U.S. government report expected to stir debate concluded that fluoride in drinking water at twice the recommended limit is linked with lower IQ in children. The report, based on an analysis of ...
The QT results also correlate well with the Wechsler Adult Intelligence Scale (WAIS) Full Scale IQ. The Quick Test raw score of 46 translates to a WAIS IQ score of 110, which is in the high average range of intellectual functioning for an adult. [5]