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But Why?: Children's belief in the necessity of explanations.

Publication ,  Journal Article
Flanagan, T; Vesga, A; Kushnir, T; Nichols, S
Published in: Journal of experimental child psychology
December 2025

Children exhibit sophisticated explanatory judgments: they expect, value, and judge explanations of salient facts. Do children also believe that everything must have an explanation? If so, they would exhibit a metaphysical explanatory judgment conforming to what philosophers have called the Principle of Sufficient Reason (PSR). In this study, 6-9-year-old children (N = 80, Mage = 7.92, SDage = 1.21) were shown statements across domains (Psychology, Biology, Nature, Physics, Religion, and Supernatural). For each statement, children were asked if they agree with a person who says there must be an explanation, even if we do not know it, or with a person who says there may not be an explanation. As a comparison, children were also asked about coincidences, which should not necessitate an explanation under the PSR. Results suggest that indeed children conform to the PSR: children of all ages believed that the statements must have an explanation. Notably, 7-9-year-olds thought coincidences do not have to have an explanation, while 6-year-olds did not differ between the statements and coincidences. This is the first step at uncovering a developmental change in our metaphysical explanatory judgments.

Duke Scholars

Published In

Journal of experimental child psychology

DOI

EISSN

1096-0457

ISSN

0022-0965

Publication Date

December 2025

Volume

260

Start / End Page

106317

Related Subject Headings

  • Thinking
  • Male
  • Judgment
  • Humans
  • Female
  • Experimental Psychology
  • Concept Formation
  • Child Development
  • Child
  • 5205 Social and personality psychology
 

Citation

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Flanagan, T., Vesga, A., Kushnir, T., & Nichols, S. (2025). But Why?: Children's belief in the necessity of explanations. Journal of Experimental Child Psychology, 260, 106317. https://doi.org/10.1016/j.jecp.2025.106317
Flanagan, Teresa, Alejandro Vesga, Tamar Kushnir, and Shaun Nichols. “But Why?: Children's belief in the necessity of explanations.Journal of Experimental Child Psychology 260 (December 2025): 106317. https://doi.org/10.1016/j.jecp.2025.106317.
Flanagan T, Vesga A, Kushnir T, Nichols S. But Why?: Children's belief in the necessity of explanations. Journal of experimental child psychology. 2025 Dec;260:106317.
Flanagan, Teresa, et al. “But Why?: Children's belief in the necessity of explanations.Journal of Experimental Child Psychology, vol. 260, Dec. 2025, p. 106317. Epmc, doi:10.1016/j.jecp.2025.106317.
Flanagan T, Vesga A, Kushnir T, Nichols S. But Why?: Children's belief in the necessity of explanations. Journal of experimental child psychology. 2025 Dec;260:106317.
Journal cover image

Published In

Journal of experimental child psychology

DOI

EISSN

1096-0457

ISSN

0022-0965

Publication Date

December 2025

Volume

260

Start / End Page

106317

Related Subject Headings

  • Thinking
  • Male
  • Judgment
  • Humans
  • Female
  • Experimental Psychology
  • Concept Formation
  • Child Development
  • Child
  • 5205 Social and personality psychology