Who is running our experiments? The influence of experimenter identity in the marshmallow task

Thomas St. Pierre*, Katherine S. White, Elizabeth K. Johnson

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

While developmental researchers take great care to report on the characteristics of their participants, they rarely report on the characteristics of their experimenter(s). This is surprising, given the real potential for experimenter identity (e.g., gender, race, age, etc.), especially as it relates to children's identities, to influence children's behavior in experiments. In the current study, we investigate how experimenter identity (as signaled by language and race cues) influences 3- to 5-year-old children's (N = 159) behavior in the famous marshmallow task. Results show that experimenter identity indeed influenced children's wait times in the marshmallow task; specifically, we found that racial mismatch between experimenter and child led to longer wait times, and in an exploratory analysis, we found that this effect was exaggerated by an additional mismatch in accent. We thus reveal a previously overlooked factor that may influence children's behavior in a delayed gratification task—experimenter identity—and discuss the important implications of these findings for developmental research more broadly.

Original languageEnglish
Article number101271
Number of pages13
JournalCognitive Development
Volume65
DOIs
Publication statusPublished - 1 Jan 2023
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2022 Elsevier Inc.

Funding

This research was supported by grants awarded to the second and third authors from the Social Sciences and Humanities Research Council ( SSHRC ), and the Natural Sciences and Engineering Research Council ( NSERC ), as well as additional financial support from MITACS Global Links. We have no conflicts of interest to disclose. This research was supported by grants awarded to the second and third authors from the Social Sciences and Humanities Research Council (SSHRC), and the Natural Sciences and Engineering Research Council (NSERC), as well as additional financial support from MITACS Global Links. We have no conflicts of interest to disclose.We would like to thank Ala Refai, Runyi Yao, Khrystyna Mandziy, Mariam Galytskyy, Grace Wang, Lisa Hotson, and the rest of the Child Language and Speech Studies Lab, as well as the participating families in our community, for their assistance in the completion of this project.

FundersFunder number
Child Language and Speech Studies Lab
Natural Sciences and Engineering Research Council of Canada
Social Sciences and Humanities Research Council of Canada
Mitacs

    Keywords

    • Delay of gratification
    • Experimental design
    • Experimenter effects
    • Implicit bias
    • Marshmallow task
    • Social cognition

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