The bystander effect occurs when the presence of others discourages an individual from intervening in an emergency situation, against a bully, or during an assault or other crime.The greater the ...

This rate did not differ significantly in the group whose OHCA had a cardiac cause (29% of children studied). “The AHA recommends bystander-initiated chest-compression-only CPR for bystander ...

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.

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 ...