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Doing so confirms IQ gains over time. Some IQ tests - for example, tests used for military draftees in NATO countries in Europe - report raw scores, and those also confirm a trend of rising scores over time. The average rate of increase seems to be about three IQ points per decade in the United States, as scaled by the Wechsler tests.
The Flynn effect is the increase in average intelligence test scores by about 0.3% annually, resulting in the average person today scoring 15 points higher in IQ compared to the generation 50 years ago. [61]
The 1981 article "Average IQ values in various European countries" by Vinko Buj is the only international IQ study that over a short time period has compared IQs using the same IQ test. Rindermann (2007) states that it is of dubious quality with scant information regarding how it was done.
The much-discussed "Flynn effect", which refers to the striking worldwide mean IQ increase over time, seemed too large to have simply reflected increased test sophistication. Possible explanations included improved nutrition and more complex environment. It was also unclear to what degree the IQ increase reflected real gain in intelligence.
In non-western countries like Korea, where religion is seen differently than in the West, non-religious people had lower mean IQs than religious persons. [ 36 ] A 2022 metanalysis of 89 studies found a small and weak negative correlation of -.14 and noted that the findings were not generalizable beyond a Western contexts.
The post 35 People with Higher IQs Than Einstein appeared first on Reader's Digest. These geniuses reportedly have IQs even higher than Einstein's estimated 160. Learn the creative ways they've ...
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 holistic measure of human intelligence is considered dubious.
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 ...