In the context of social psychology, the bystander effect refers to a social phenomenon where individuals are less likely to offer help to a victim when other people are present. This behavior has been observed in various situations, raising questions about the underlying mechanisms. Consider a scenario where a person collapses in a public area, and several bystanders witness the event. Researchers have identified various factors that can influence whether or not help is given. One of these factors is the perceived responsibility of the bystanders.
Which of the following statements most accurately describes the role of perceived responsibility in the bystander effect?