Researchers quizzed 571 people aged 17 to 25 about their lives and found those who grew up with sisters were more likely to be happy and balanced.What do you think of this?
During the study, participants filled in psychological questionnaires which researchers used to assess a range of issues, including whether they had a positive outlook and any mental health problems.
The article doesn't explain how the researchers controlled for other factors that may have contributed to the results, or why exactly having daughters in ones' family might contribute to someone ending up being "happy and balanced" compared to people growing up in families with brothers (brother were said to have the opposite effect).
The main reason I read the article was its tagline that read:
Sisters spread happiness while brothers breed distress, experts believe.I'm not convinced at all yet. Will wait for more details.