Monday, November 22, 2010

The Differences in Siblings.

This one came to me from my brother, of all people.

For those of us that have siblings, or ever wondered why siblings that we know are the way they are, it is a super interesting piece.


Physically, siblings tended to differ somewhat, but they were a lot more similar on average when compared to children picked at random from the population. That's also true of cognitive abilities.

Tom and Eric Hoebbel
Courtesy of Tom Hoebbel

Tom Hoebbel (left) became an artist, while Eric (right) chose finance.

"The surprise," says Plomin, "is when you turn to personality."

Turns out that on tests that measure personality — stuff like how extroverted you are, how conscientious — siblings are practically like strangers.

"Children in the same family are more similar than children taken at random from the population," Plomin says, "but not much more."

In fact, in terms of personality, we are similar to our siblings only about 20 percent of the time. Given the fact that we share genes, homes, routines and parents, this makes no sense. What makes children in the same family so different?


Tom said...

Don't forget to credit NPR for the original story...

and as for stocks...try SGI.

jeff said...

I always link to the site that I get a story from... check the "this" that I open up with.

Anyway, I will have to give SGI a look.

Thanks for stopping by.