first born

(Newser) - Firstborns really do have an advantage, a new UK study suggests. Research out of Edinburgh University finds that there's a measurable IQ difference between firstborns and their siblings, and it shows up as early as age 1, reports the BBC . The reason? Parents tend to spend more time with...

(Newser) - Firstborn kids are generally more intelligent than their brothers and sisters, but younger siblings do better in school and are more outgoing, according to a new study. Previous birth-order research looked at children in isolation—e.g., how many presidents are firstborns?—but the new study examined 90 pairs of...