Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Uploaded on Sep 15, 2007
This clip is based on the classic research into the 'bystander effect' and 'diffusion-of-responsibility from the 1970s by Bibb Latane and John Darley showing how the presence of other people can have an inhibiting influence on our behaviour and even make us put our own life at risk