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Theo Toppe

Guest Researcher

Department of Comparative Cultural Psychology
Max Planck Institute for Evolutionary Anthropology 
Deutscher Platz 6 
D-04103 Leipzig 

phone: +49 (0) 341 3550 400
email: theo_toppeeva.mpgde

Thesis title: Effects of cooperation and competition on preschoolers’ prosociality toward third-parties

Research Interests
Curriculum Vitae

Research Interests

In my research, I try to understand how different contexts influence children’s social behaviors. In particular, I investigated how cooperation and competition shape preschoolers’ sharing and social inclusion. In ongoing projects, I try to learn more about the impact of parental cultural values on children’s social development. 

Curriculum Vitae

2015 - 2016Research Assistance
Department for Developmental and Comparative Psychology
Max Planck Institute for Evolutionary Anthropology Leipzig
2015 - 2016  Research Assistance
Leipzig University Hospital
2015Student Teaching Assistant for Clinical Psychology
Leipzig University
2014Student Assistance
Leipzig University Hospital 
2010 - 2012Student Teaching Assistant for Statistics
University of Freiburg 
Since 2019PhD Student
Department for Comparative Cultural Psychology
Max Planck Institute for Evolutionary Anthropology Leipzig
2016 - 2019PhD Student
Department of Early Child Development and Culture
Leipzig University
2013 - 2015  MSc Psychology
Leipzig University
Final Grade: 1.1
2009 - 2012 BSc Psychology
University of Freiburg
Final Grade: 1.2
2018 - 2019Seminar: Academic Teaching, graduate course
2017Practice Course: Scientific Reading, graduate course
2016 - 2019Seminar: Developmental Psychology, graduate course
2010 - 2012TA: Statistics I and II, undergraduate course
  • German (native)
  • English (C1)


Toppe, T., Hardecker, S., Zerres, F., & Haun, D. B. M. (2021). The influence of cooperation and competition on preschoolers' prosociality toward in-group and out-group members. Royal Society Open Science, 8: 202171.
Open Access    DOI    BibTeX   Endnote   

Stengelin, R., Golubovic, A., Toppe, T., Over, H., & Haun, D. B. M. (2021). Priming third-party ostracism does not lead to increased affiliation in three Serbian communities. Journal of Experimental Child Psychology, 203: 105019.
Open Access    DOI    BibTeX   Endnote   

Garbe, L., Rau, R., & Toppe, T. (2020). Influence of perceived threat of Covid-19 and HEXACO personality traits on toilet paper stockpiling. PLoS One, 15(6): e0234232.
Open Access    DOI    BibTeX   Endnote   

Toppe, T., Hardecker, S., & Haun, D. B. M. (2020). Social inclusion increases over early childhood and is influenced by others’ group membership. Developmental Psychology, 56(2), 324-335.
DOI    BibTeX   Endnote   


Toppe, T. (2020). Causes and Consequences of Cooperative Games in Young Children. Talk given at Primate Conversations Institute of Cognitive & Evolutionary Anthropology, University of Oxford, Oxford, United Kingdom.