An exploration of how sibling position influences personality development. Birth order doesn't just determine when family ...

While birth order is known to influence people’s personality traits and behavior, whether you’re the cautious firstborn or the risk-taking youngest child, that’s not the only way it affects ...

Now here's where it gets interesting. Lochlan is the youngest child, which according to the birth order theory (and every younger sibling I know), means he should be the carefree, attention ...

The Latest Birth Order Study Brock University’s Michael ... known as “d,” which measures effect size independently of sample size. A value of .2 is small, .5 is medium, and ...