The bystander effect

Why doesn't anyone come to help? The more people who observe an emergency situation, the less likely they are to offer help. Example: this experiment was conducted in 1968 by social psychologists Bibb Latane and John Darley in New York City. One college student simulated an epileptic seizure. In a situation where one passerby was present during the seizure, the student received help 85% of the time, and only 35% of the time if there was more than one person nearby.