1975以後出生的男性智商出現下降趨勢

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個人積分：242分
文章編號：69041280

242分

樓主

2018-06-23 14:27

http://www.bbc.com/zhongwen/trad/world-44539356

這是根據丹麥、英國、法國、荷蘭以及芬蘭這幾個西方國家調查和研究的結果。據信這是對此現象首個比較權威性的研究。
世界人口智商在第二次世界大戰（1939-1945）後有顯著上升，並且在其後的60-70年中呈現穩固上升階段。英國《泰晤士報》的近日報道這樣說。
這一現象也被稱為弗林效應（Flynn effect），即指智商測試的結果逐年增加。

但目前年輕人的智商平均得分開始出現下降趨勢，一些專家已經開始稱之為反弗林效應。

這次智商測試的結果主要是在西方比較發達的國家進行，它並不包括發展中國家以及女性的數據。

奧斯陸Ragnar Frisch經濟研究中心的Ole Rogeberg博士和 Bernt Bratsberg分析了從1970到2009年服役的73萬名挪威男子的智商測試數據，結果發現，1991年出生的男子比1975年出生的人平均得分低5個點，而1975年出生的人又比1962年出生的人少3個點。
這一研究發表在《美國國家科學院院刊》（PNAS）上。

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不知道如果在台灣取樣,結果是如何? 微冷笑

2018-06-23 14:27 發佈

文章關鍵字下降趨勢男性智商 1975

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橘子顏色
個人積分：242分
文章編號：69042015

242分

樓主

2018-06-23 15:26

時代雜誌也報導了

按這裡檢視網頁

IQ Scores Are Falling Due to Environmental Factors, Study Finds

By MAHITA GAJANAN June 13, 2018

IQ scores are on a decline, reversing a trend that saw scores rising at a steady rate during the 20th century, according to a new study.

Researchers from the Ragnar Frisch Centre for Economic Research in Norway studied the IQ scores of about 730,000 Norwegian men born between 1962 and 1991. They found that scores grew by nearly three percentage points every decade for people born between 1962 and 1975. But among those born after 1975, scores fell.

The cause of the IQ decline is due to environmental factors, and not genetics, said Ole Rogeburg, a senior research fellow at Ragnar Frisch Centre and co-author of the study on IQ scores, published in the Proceedings of the National Academy of Sciences journal.

“It’s not that dumb people are having more kids than smart people, to put it crudely,” Rogeburg told CNN. “It’s something to do with the environment, because we’re seeing the same differences within families.”

Environmental factors include differences in the way young people are educated, increases in time spent online, changes in nutrition and less reading overall.

The downward trend is a reversal of the Flynn effect, a term that describes the vast improvement of IQ scores in many parts of the world throughout the 20th century. According to the study, the Flynn effect peaked in the mid-1970s and has declined in the decades since.