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Peer promises boost preschool patience in online test

An online marshmallow experiment shows that a peer pledge to wait increases how long five to six year olds wait before eating their marshmallow, especially for younger children.

August 13, 2025 at 08:51 PM
blur New twist observed when children take the marshmallow test

An online marshmallow test shows peer promises shape preschoolers' patience, highlighting the power of social reliability in digital settings.

New twist observed when children take the marshmallow test

Researchers ran an online version of the classic marshmallow test with five and six year olds on Zoom. A remote partner appeared on screen and either pledged to wait or expressed doubt about waiting. The children could not respond, turning the scene into a one way test of trust. In the pledge condition, average waiting time rose to about 451 seconds versus 220 seconds in the doubt condition, with younger children showing a stronger effect. Nearly half of the younger group reached the full ten minute wait when the partner pledged, while only about one in ten did so when the partner sounded unsure.

The sample was mainly white, middle class families from northern England, which raises questions about how findings apply to other cultures and groups. The study adds to earlier work showing verbal commitments influence cooperation and suggests social reliability cues can shape self control in digital settings. Researchers also propose using brief peer pledges in online classrooms to boost focus, while noting the need for replication and longer term tracking.

Key Takeaways

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Verbal promises from peers can increase waiting time in a digital marshmallow test
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The effect is stronger among younger children
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Social reliability cues can influence self control without adult reassurance
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Gender differences appeared with girls delaying longer, but data is not conclusive
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Diversity of the sample is limited and replication is needed
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Brief peer pledges could boost focus in virtual classrooms
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Social contracts may help siblings cooperate in home settings

"Children in the promise condition waited longer to eat their treat than children in the social risk condition"

Direct finding quoted in the study's analysis

"Trust can override temptation in a digital setting"

Editorial takeaway about broader implications

"A simple verbal commitment may be as powerful as a contract for young minds"

Implication about how commitments work

"Social reliability cues influence behavior more than the promise of an immediate reward"

Synthesis of the study's insight

The result shows that social cues can steer self control even when a child is alone with a digital partner. A spoken pledge acts like a tiny contract that shifts choices, which matters in virtual learning where direct reassurance is limited. This aligns with a broader view that patience arises from context as much as inner drive.

Yet there are limits. The participant group is not diverse, so the impact in other cultures remains unknown. It is also unclear how long the effect lasts beyond a single session. Future work should test reciprocal pledges in real time across cultures and track long term outcomes. The finding invites educators to consider small, clear commitments as a tool to support attention and cooperation in online settings.

Highlights

  • A simple promise on screen becomes a patience contract
  • Trust from a peer shifts a child's choice
  • Verbal pledges can guide action more than a nudge
  • Small social contracts may scale in online classrooms

diversity concerns in sample

The study relies on a largely white, middle class sample from northern England which may limit generalizability. Replication across cultures is needed to confirm how universal the effect is.

Small promises may shape big habits when adults nurture them with clarity and consistency.

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