John M. Darley, the Dorman T. Warren Professor of Psychology, Emeritus, and professor of psychology and public affairs, emeritus, died Aug. 31 in Lawrenceville, New Jersey, of complications from Lewy ...

John Darley has also identified actions a victim can take to get others to help him. One is to make his need clear—“I’ve twisted my ankle and I can’t walk; I need help”—and the other is to select a ...

(MoneyWatch) COMMENTARY Bystander behavior was first described by psychologists John Darley and Bibb Latane. What they found was a simple rule: the more people who witness something going wrong ...

The 'Bystander Effect' Is Real -- But Differently Among Larger Groups A witness to a troubling situation who is in a group may feel a lesser sense of personal responsibility than a single individual.