What 5000 babies can tell us about developing minds and how to study them

Authors	Brianna T.M. McMillan Heidi A. Baumgartner Christina Bergmann Michael C. Frank J. Kiley Hamlin Dora Kampis Melissa Kline Struhl Eon-Suk Ko Jessica E. Kosie Casey Lew-Williams Kelsey Lucca Tobias Schuwerk Melanie Soderstrom Ingmar Visser Francis L. Yuen Martin Zettersten Krista Byers-Heinlein
Publication date	9 June 2026
Journal	Communications psychology
Article number	92
Volume \| Issue number	4 \| 1
Number of pages	5
Organisations	Faculty of Social and Behavioural Sciences (FMG) - Psychology Research Institute (PsyRes)
Abstract	A decade of ManyBabies research, testing thousands of babies across hundreds of labs, has shown that some, but not all findings in infant research replicate well. Collectively, these projects have shown us that our methods carry limitations that larger samples alone cannot resolve. Here we present three lessons that point toward a more reliable, inclusive developmental science.
Document type	Article
Language	English
Published at	https://doi.org/10.1038/s44271-026-00477-w (Final published version)
Downloads	What 5000 babies can tell us about developing minds and how to study them (Final published version)
Supplementary materials	Transparent Peer Review file
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