The first child may not be the perfect one after all. A large study just concluded that birth order has little to no affect on personality or IQ.

Most people are familiar with the stereotypes: the oldest child is the smartest and most outgoing, the youngest child is the pampered “mascot”, and all other children fall somewhere in between. However, Focus News reports that a recent study of over 370,000 siblings found birth order had no significant affect on intelligence or personality.

“It’s the biggest [study] in history looking at birth order and personality,” lead author Brent Roberts, of the University of Illinois, said. Apparently, while some differences were noted and tracked, they were so small as to be nearly insignificant.

Oldest children in general were found to be more extroverted and agreeable, with less anxiety than their younger siblings. First-borns were also found to have on average an IQ that was 1 point higher than the “later-borns.”

Fortunately for all the second and third children out there, 1 IQ point apparently means nothing. “These difference were small, amounting to a correlation of 0.02,” Roberts assured.

Rodica Damian, a study team member and professor at the University of Houston, asserted that their results meant all the birth-order “rules” should be ignored. “Birth order should probably not influence your parenting,” Damian said. ‘Because it’s not meaningfully related to your kid’s personality or IQ.”