Birth order has long been linked to differences in cognition, with firstborn children often outperforming their later-born ...

You know that moment when you’re at a party and someone mentions they’re the youngest of four kids, and you immediately think “ah, that explains the attention-seeking behavior”? Birth order psychology ...

“Stop that!” 7-year-old Allie screeches. Standing within earshot of this latest sibling squabble, Mom instantaneously hollers at her 9-year-old son, “Brian, You're punished.” Brian screeches, “That’s ...