Jun 18, 2018 01:22 AM
(This post was last modified: Jun 18, 2018 01:23 AM by C C.)
http://reason.com/blog/2018/06/15/people...flynn-effe
EXCERPT: . . . People are getting dumber. So concludes a new study [...] Using military conscription data from Norwegian males born from 1962 and 1991, the authors find that the secular increase in population intelligence observed throughout the 20th century has peaked and has now gone into reverse.
Average IQs, as measured on standardized intelligence tests, increased for most of the 20th century. This astonishing fact was first reported in 1984 by the New Zealand political scientist James Flynn, when he analyzed the trend in U.S. test scores. This upward trend has since been dubbed the "Flynn effect."
[...] About a decade ago various researchers reported that the Flynn effect had begun to reverse in some countries, with average IQ scores starting to decline again. More recently, some observers have suggested that average IQs are coming down because of dysgenic fertility—that is, because less intelligent people are having more children than smarter folks—or because of lower-IQ immigrants and their children. These trends, they argue, are now beginning to swamp the IQ-boosting effects that improvements in nutrition, education, and falling pathogen stress had during the 20th century.
In trying to figure out what could be going on, the Norwegian researchers took advantage of another IQ trend....
MORE: http://reason.com/blog/2018/06/15/people...flynn-effe
EXCERPT: . . . People are getting dumber. So concludes a new study [...] Using military conscription data from Norwegian males born from 1962 and 1991, the authors find that the secular increase in population intelligence observed throughout the 20th century has peaked and has now gone into reverse.
Average IQs, as measured on standardized intelligence tests, increased for most of the 20th century. This astonishing fact was first reported in 1984 by the New Zealand political scientist James Flynn, when he analyzed the trend in U.S. test scores. This upward trend has since been dubbed the "Flynn effect."
[...] About a decade ago various researchers reported that the Flynn effect had begun to reverse in some countries, with average IQ scores starting to decline again. More recently, some observers have suggested that average IQs are coming down because of dysgenic fertility—that is, because less intelligent people are having more children than smarter folks—or because of lower-IQ immigrants and their children. These trends, they argue, are now beginning to swamp the IQ-boosting effects that improvements in nutrition, education, and falling pathogen stress had during the 20th century.
In trying to figure out what could be going on, the Norwegian researchers took advantage of another IQ trend....
MORE: http://reason.com/blog/2018/06/15/people...flynn-effe