Diffusion Of Responsibility

A freeway accident involving a family of four that is stuck in a vehicle, will have devastating consequences if no one on the freeway calls for help. It seems as if the more people the more likely that at least one person will call for help, but actually the more people present in the situation the more likely each individual will feel less responsible to be involved. In this case, the accident is located in a freeway were there are usually many people present; therefore, it would take longer for a person to decide to call for help and the longer span of time taken can lead worse injuries and even the death of those involved in the accident.
An experimental research study that would help test whether diffusion of responsibility is present