A TEDTalk by Joachim de Posada discusses the marshmallow test, offering further insights and featuring a demonstration of the experiment conducted with children in Colombia.

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The marshmallow test is a famous experiment by Walter Mischel designed to assess self-regulation in young children. In the study, a preschooler was left alone in a room with a single marshmallow on a table. The child was given a choice: eat the one marshmallow immediately, or wait for the researcher to return and receive a second marshmallow as a larger reward.

Mischel's Marshmallow Test

Spielman, R. M., Jenkins, W. J., & Lovett, M. D. (2020, April 22). Psychology (2nd ed.). OpenStax. https://openstax.org/books/psychology-2e/pages/1-introduction

OpenStax Psychology (2nd ed.) Textbook

Longitudinal follow-ups of the marshmallow test participants revealed significant correlations between early self-control and later life outcomes. Children who successfully delayed gratification tended to be more successful in high school, with higher SAT scores, better peer relationships, and a lower likelihood of substance abuse. As adults, they also showed a tendency towards more stable marriages. In contrast, children with poor self-control were more likely to face academic and behavioral issues later on.

Long-Term Correlations of the Marshmallow Test

A more recent, larger replication of the marshmallow test found that while the link between early delayed gratification and adolescent achievement exists, the association is weaker than originally reported. This research emphasized that the outcomes are highly sensitive to situational factors, such as a child's family background, home environment, and early cognitive abilities. This suggests that external context is important for a more complete understanding of a child's ability to delay gratification.

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