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When responsibility seems to belong to somebody else

When several people notice a problem, each may assume somebody else has it covered. Psychologists call this diffusion of responsibility. It is one possible influence on helping, rather than a rule that a crowd will always stand by.

3–7 min

Questions you could explore

  • What makes responsibility feel personal rather than shared?
  • How might behavior in a real emergency differ from a laboratory task?

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Psychology

Can an option nobody wants change what people choose?

Choosing between two offers can feel different when a third appears beside them. A decoy is less attractive than one option on the relevant features, but its presence does not reliably change every decision.

5–7 min
Psychology

When a question reshapes a memory

After a car crash or a crime, the way an investigator phrases a single question can change what a witness remembers seeing. Research on eyewitness reports separates what someone originally observed from information introduced afterward, making question wording a crucial part of the evidence problem.

3–7 min
When responsibility seems to belong to somebody else | Speech Topic | speaking.app