Academic Profile

Academic Profile

Asst Prof Setoh Pei Pei

Assistant Professor, School of Social Sciences

Asst Prof Setoh Pei Pei

Dr. Setoh joined the Division of Psychology at Nanyang Technological University in 2014. A Singaporean, she received her BSocSci from National University of Singapore, MA from Nanyang Technological University, and MA and PhD from University of Illinois. During her graduate studies, she won the Marion Morse Wood Research Fellowship, and was on the “List of teachers ranked as excellent by their students”. Her work with mentor Dr. Renée Baillargeon and other colleagues has been published recently in journals such as Proceedings of the National Academy of Sciences, USA, and in book chapters such as The Cognitive Neurosciences, APA Handbook of Personality and Social psychology, and Navigating the social world: What infants, children, and other species can teach us.
Research Interests
I am interested in how young children make sense of the world around them, and what explanatory frameworks and learning mechanisms enable them to do so. Currently, my research focuses on sociomoral reasoning and early conceptual development. Specifically, I examine young children’s expectations about interactions within and between groups, moral character development, and the development of gender and ethnic biases.

My lab is recruiting! I am looking for enthusiastic undergraduate, postgraduate, and postdocs to join us. Please send enquiries to
Current Projects
  • Equity, Diversity and Inclusion
  • Fostering Harmonious Intergroup Relations in Early Childhood
  • Heart and Smarts: Improving parents' knowledge about babies and young children to increase Singapore birth rates and nurture a smarter generation
  • Infant sleeping arrangements and mother-infant well-being in Singapore
  • Stress and the learning experience among tertiary students
  • Toddlers' Moral Reasoning
Selected Publications
  • Setoh, P., Zhao, S., Santos, R., Heyman, G. D., & Lee, K. (2020). Parenting by lying in childhood is associated with negative developmental outcomes in adulthood. Journal of Experimental Child Psychology, 189(2020), 104680.
  • Setoh, P., Lee, K. J. J., Quinn, P., Heyman, G. D., & Lee, K. (2019). Do children with other-race domestic helpers show less racial bias?. 2019 Society for Research in Child Development Biennial Meeting.
  • Setoh, P., Lee, K. J. J., Zhang, L, Qian, M. K., Heyman, G. D., Quinn, P. C. & Lee, K. (2019). Racial categorization abilities predict implicit racial biases in preschool children.. Child Development, 90(1), 162-179.
  • Lee, K. J. J., Esposito, G. & Setoh, P. (2018). Preschoolers Favor Their Ingroup When Resources Are Limited. Frontiers in Psychology, 9(1752), doi:10.3389/fpsyg.2018.01752.
  • Setoh, P., Scott, R. M., & Baillargeon, R. (2016). Two-and-a-half-year-olds succeed at a traditional false-belief task with reduced processing demands. Proceedings of the National Academy of Sciences of the United States of America (PNAS), Epub Nov 7 2016, doi:10.1073/pnas.1609203113.

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