What Your Sibling Birth Order Says About Your Personality, From Attention-Seekers to Peace-Makers

glamour.com:

, you're probably more than aware of how different each of you are—and your birth order plays a big role in that. Whether you're the oldest, youngest, or middle child, scientists are convinced that our rank within our families can determine our personality traits.Of course, we all have our own opinion on the matter.

I'm the youngest and definitely think some of my selfishness and my tendency to get my own way—because my parents essentially gave up by the time it came to me—come from being the youngest daughter.But what do the experts think?

Here's what we found.According to , eldest siblings tended to be more “extroverted, agreeable, and conscientious.” The study also found that firstborn children tend to have a higher IQ than those born later, though it was only by a point or so. (In fact, according to the study, the differences between firstborn children and those born later are “so small that they have no practical relevance to people’s lives.”)Another came to a similar conclusion about the eldest child's tendency to have a higher IQ, noting that firstborns—especially those who are female—are statistically more likely to be the most ambitious and well-qualified of their family as they tend to carry higher aspirations.Sam Jahara, , told Glamour UK that some studies suggest that firstborn children “enjoy a distinct advantage over their later-born counterparts in terms of educational attainment.” “The level of attention that parents devote to firstborns is usually much higher, but these children will also be on the receiving end of their parent’s anxieties and the overwhelm of being new parents,” she said. “Oldest children usually enjoy a period of exclusive attention.