Birth order has no meaningful effect on personality or IQ, massive study reports [news item]
From the 23 July 2015 Business Insider news item
For those who believe that birth order influences traits like personality and intelligence, a study of 377,000 high school students offers some good news: Yes, the study found, first-borns do have higher IQs and consistently different personality traits than those born later in the family chronology. However, researchers say, the differences between first-borns and “later-borns” are so small that they have no practical relevance to people’s lives.
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