"And a lot of these bullying prevention and intervention programs that focus on bystanders have been shown to be the effective programs because they focus on changing that bystander behavior.

VOA: special.2010.05.06

Now, we know from the work in the Bystander effect that in general which one are we more likely to help in, when we're the only person or multiple?

我们从旁观者效应的实验中知道,我们在哪种情景上更可能出手相救，一个人，还是有其他人时？

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