The poor tend to value social connections, psychologists say. But as people become wealthy, they need one another less and — according to some scientists — make fewer connections.
If someone like Lang Lang were starting out now, the energetic concert pianist could nail every piano competition without the judges ever hearing a note, according to a new study.
China Photos/Getty Images
Girls are more likely to take high school physics if they see women in their communities working in science, technology, engineering and math, a new study finds.
Student Kahlil Quato fights tears as he speaks at a University of Chicago candlelight vigil in 2007. The service was held in remembrance of Amadou Cisse, a graduate student, who was shot to death at point-blank range.
Opponents of same-sex marriage participate in the March for Marriage in Washington, D.C., on March 26, as the Supreme Court hears arguments on California's Proposition 8 ban on same-sex marriage.
Nicholas Kamm/AFP/Getty Images
One contemporary analysis links the increase in gender equality in a society with increased sexual empowerment of women and less sexual coercion. But there's more to it than that.