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dc.contributor.authorSalvadori, Eliala
dc.contributor.authorBlazsekova, Tatiana
dc.contributor.authorVolein, Ágnes
dc.contributor.authorKarap, Zsuzsanna
dc.contributor.authorTatone, Denis
dc.contributor.authorMascaro, Olivier
dc.contributor.authorCsibra, Gergely
dc.date.available2022-03-29T09:28:36Z
dc.date.issued2015
dc.identifier.issn1932-6203
dc.identifier.doihttp://dx.doi.org/10.1371/journal.pone.0140570
dc.identifier.urihttp://hdl.handle.net/20.500.14018/12715
dc.description.abstractSeveral studies indicate that infants prefer individuals who act prosocially over those who act antisocially toward unrelated third parties. In the present study, we focused on a paradigm published by Kiley Hamlin and Karen Wynn in 2011. In this study, infants were habituated to a live puppet show in which a protagonist tried to open a box to retrieve a toy placed inside. The protagonist was either helped by a second puppet (the “Helper”), or hindered by a third puppet (the “Hinderer”). At test, infants were presented with the Helper and the Hinderer, and encouraged to reach for one of them. In the original study, 75% of 9-month-olds selected the Helper, arguably demonstrating a preference for prosocial over antisocial individuals. We conducted two studies with the aim of replicating this result. Each attempt was performed by a different group of experimenters. Study 1 followed the methods of the published study as faithfully as possible. Study 2 introduced slight modifications to the stimuli and the procedure following the guidelines generously provided by Kiley Hamlin and her collaborators. Yet, in our replication attempts, 9-month-olds’ preference for helpers over hinderers did not differ significantly from chance (62.5% and 50%, respectively, in Studies 1 and 2). Two types of factors could explain why our results differed from those of Hamlin and Wynn: minor methodological dissimilarities (in procedure, materials, or the population tested), or the effect size being smaller than originally assumed. We conclude that fine methodological details that are crucial to infants’ success in this task need to be identified to ensure the replicability of the original result.
dc.description.urihttp://journals.plos.org/plosone/article?id=10.1371/journal.pone.0140570
dc.language.isoeng
dc.rightsCC BY 4.0
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectMultidisciplinary
dc.subjectPreference
dc.subjectProsocial behavior
dc.subjectPuppetry
dc.subjectDevelopmental psychology
dc.subjectPopulation
dc.subjectEducation
dc.subjectHelping behavior
dc.subjectBiology
dc.subjectWynn
dc.subjectChild development
dc.subjectAggression
dc.subjectMedicine
dc.titleProbing the strength of infants' preference for helpers over hinderers: Two replication attempts of Hamlin and Wynn (2011)
dc.typeJournal article
dc.source.journaltitlePLoS One
dc.source.volume10
dc.source.issue11
dc.source.spage1
dc.source.epage10
refterms.dateFOA2022-03-29T09:28:36Z
dc.contributor.unitDepartment of Cognitive Science
dc.identifier.urlhttp://journals.plos.org/plosone/article?id=10.1371/journal.pone.0140570


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