Search results
Results from the WOW.Com Content Network
IQ goes from being weakly correlated with genetics for children, to being strongly correlated with genetics for late teens and adults. The heritability of IQ increases with the child's age and reaches a plateau at 14–16 [9] years old, continuing at that level well into adulthood. However, poor prenatal environment, malnutrition and disease ...
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.
An individual's "deviation IQ" is then estimated, using a more complicated formula or table, from their score's percentile at their chronological age. But at least as recently as 2007, older tests using ratio IQs were sometimes still used for a child whose percentile was too high for this to be precise, or whose abilities may exceed a deviation ...
A number of studies have indicated that as birth order increases IQ decreases with first borns having especially superior intelligence. Many explanations for this have been proposed but the most widely accepted idea is that first borns receive more attention and resources from parents and are expected to focus on task achievement, whereas later ...
Among a sample of women using birth control methods of comparable theoretical effectiveness, success rates were related to IQ, with the percentages of high, medium and low IQ women having unwanted births during a three-year interval being 3%, 8% and 11%, respectively. [43]
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. [ 11 ] 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 ...
In general, intelligence is thought to be attributed to both genetic and environmental factors, but the extent to which each plays a key role is highly disputed. Studies of identical and non-identical twins raised separately and together show a strong correlation between child IQ and socio-economic level of the parents. Children raised in lower ...
Health can affect intelligence in various ways. Conversely, intelligence can affect health.Health effects on intelligence have been described as being among the most important factors in the origins of human group differences in IQ test scores and other measures of cognitive ability. [1]