The infamous murder launched decades of studies investigating the “bystander effect,” where a diffusion of responsibility and fear of risk leads to inaction on the part of people who may be ...

In a group, individuals feel less inclined to take action. [iStockphoto] Imagine you're in a huge crowd of people walking down a busy street. You see a person fall to the ground nearby, would you ...

This phenomenon—known as the “bystander effect”—can seem relatively harmless in such situations. A dropped pencil or a stranded traveler might not suffer much from our inaction.

This activity uses a real-life example to explore the bystander effect, looking at what happens when people don't stop to help in an emergency. In Germany, three people were fined for failing to help ...

Several factors influence how we respond, contributing to the phenomenon known as the “bystander effect”. Brooke Kinsella, whose brother Ben was fatally stabbed in 2008, has been trying to ...