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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.
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] This effect can be explained by a generally more stimulating environment for all people.
The IQ figures are based on 3 different studies for 17 nations, two studies for 30 nations, and one study for 34 nations. There were actual tests for IQ in the case of 81 countries out of the 185 countries studied. For 104 nations there were no IQ studies at all and IQ was estimated based on the average IQ of surrounding nations. [2]
IQ and Global Inequality is a 2006 book by psychologist Richard Lynn and political scientist Tatu Vanhanen. [1] IQ and Global Inequality is follow-up to their 2002 book IQ and the Wealth of Nations, [2] an expansion of the argument that international differences in current economic development are due in part to differences in average national intelligence as indicated by national IQ estimates ...
A 2014 study of 600 college students found that individuals who identified as "dog people" were more outgoing than those who identified as "cat people," according to a test that measures ...
These geniuses reportedly have IQs even higher than Einstein's estimated 160. Learn the creative ways they've put their smarts to good (or bad). The post 35 People with Higher IQs Than Einstein ...
IQ tests had lower negative correlations with certain socially undesirable outcomes such as that children with high IQ were less likely to engage in juvenile crime. One example being a study finding a correlation of −0.19 (−0.17 with social class controlled for) between IQ scores and number of juvenile offenses in a large Danish sample.