In the early 1950s, the social psychologist Muzafer Sherif and his colleagues conducted a now-classic experiment, on intergroup conflict and resolution of conflict, with 11- and 12-year-old boys at a ...

Earlier this week, I spent a long, long day—from 5:30 a.m. until 8:20 p.m.—as a poll worker. As always, I came home exhausted, feeling virtuous, civic-minded, and happy. I always have a great time.

By Madeleine PownallIn the US state park of Robbers Cave, Oklahoma, Carolyn Wood Sherif is standing squinting up at the sun. The two wooden cabins before her ra ...