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Evidence shows that education and intelligence have a complex interaction, and this is demonstrated in a longitudinal study by Richards and Sacker. [9] They collected data from the British 1946 birth cohort and investigated how childhood intelligence was predictive of other outcomes later in life including educational attainment and mental ability at 53 years old (using the National Adult ...
They also reported that the magnitude of the effect was different for different types of intelligence ("0.41, 0.30, 0.28, and 0.21 IQ points annually for fluid, spatial, full-scale, and crystallized IQ test performance, respectively"), and that the effect was stronger for adults than for children.
Although health may definitely affect intelligence, most of the cognitive epidemiological studies have looked at intelligence in childhood when ill health is far less frequent and a more unlikely cause of poor intelligence. [3] Thus most explanations have focused on the effects intelligence has on health through its influence on mediating causes.
A Northwestern University study shows a decline in three key intelligence testing categories—a tangible example of what is called the Reverse Flynn Effect. Leading up to the 1990s, IQ scores ...
The Cognitive Abilities Test Fourth Edition (CAT4) is an alternative set of cognitive tests used by many schools in the UK, Ireland, and internationally. [7] The tests were created by GL Education [8] to assess cognitive abilities and predict the future performance of a student.
The McCarthy Scales of Children's Abilities has been used in many different research studies: ". . . use to evaluate the effects of nutritional supplements given to nursing mothers on the development of the nursing infants, the effects of air-pollution on children's cognitive developments, and the effects of early intervention on the cognitive development of preterm infants."
In psychometrics, predictive validity is the extent to which a score on a scale or test predicts scores on some criterion measure. [ 1 ] [ 2 ] For example, the validity of a cognitive test for job performance is the correlation between test scores and, for example, supervisor performance ratings.
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.