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The development of scope insensitivity in sharing behavior.

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Young children share more with groups, but older children exhibit the singularity effect, favoring identified single victims over groups. This developmental shift in prosocial behavior emerges in early childhood.

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Area of Science:

  • Developmental Psychology
  • Behavioral Economics
  • Social Psychology

Background:

  • The singularity effect describes a bias towards helping identifiable single victims over groups.
  • This phenomenon is well-documented in adults but underexplored in early childhood development.

Purpose of the Study:

  • To investigate the developmental trajectory of the singularity effect in children.
  • To examine how children's sharing behavior changes with age and Theory of Mind development.

Main Methods:

  • Children aged 3.8 to 8.2 years participated in sharing experiments.
  • Researchers analyzed actual sharing behavior towards single versus group recipients.

Main Results:

  • Younger children (under 8.2) shared more with groups than single recipients.
  • Older children and those with higher Theory of Mind demonstrated the singularity effect, favoring single identified victims.
  • A developmental reversal in prosocial giving was observed.

Conclusions:

  • The singularity effect is not innate but develops during early childhood.
  • Theory of Mind and cognitive maturation play crucial roles in the emergence of this bias.
  • Understanding this developmental pattern offers insights into the foundations of altruism and decision-making.