Actually, since I'm the oldest of four girls --- I like that study!!
![Wink](https://pics3.city-data.com/forum/images/smilies/wink.gif)
And, I am the smartest of the four. However....I think some of it is that I also had to develop good organizational and life skills because my three sisters were all younger and I had to help raise them. I believe that responsibility and hard work also contribute to intelligence.
When my daughter heard about that study she didn't know what to think about it -- then I said, "Hey, don't worry -- you're the smartest....because you're an only child!"
![Big Grin](https://pics3.city-data.com/forum/images/smilies/biggrin.gif)
Everyone's unique, and most studies are skewed, anyway. If you're not the first-born, don't fret! Hahaha
![Wink](https://pics3.city-data.com/forum/images/smilies/wink.gif)
Smarts come in all shapes, sizes, birth orders, and with lots of different personalities.
![Big Grin](https://pics3.city-data.com/forum/images/smilies/biggrin.gif)