Young infants prefer prosocial to antisocial others

J. Kiley Hamlin, Karen Wynn

Cognitive Development, 2011. DOI 10.1016/j.cogdev.2010.09.001

Has this study been replicated?

The atlas records 3 replications of this study. Recorded outcomes: 2 failed, 1 mixed.

Do 9-month-old infants prefer prosocial others? Two conceptual replications and a meta-analysis of the Hamlin & Wynn box opening/closing paradigm, Rimol et al. (2026). Outcome recorded: failed. In two independent samples of 9-month-olds, 58% of 24 Norwegian and 57% of 30 Javanese infants preferred the helper, which was not significantly different from chance. View paper
Probing the Strength of Infants' Preference for Helpers over Hinderers: Two Replication Attempts of Hamlin and Wynn (2011), Salvadori et al. (2015). Outcome recorded: failed. in our replication attempts, 9-month-olds' preference for helpers over hin- derers did not differ significantly from chance (62.5% and 50%, respectively, in Studies 1 and 2). View paper
Do infants prefer prosocial others? A direct replication of Hamlin & Wynn (2011), Sitch (2018). Outcome recorded: mixed. Our pre-registered sample did not replicate the original finding. However, when including all infants tested in the box scenario, the finding did indeed replicate. View paper