• 2023– Member of the Human Mind and its Complexity Section Committee, Academia Europaea
• 2023– Member of the Jury, The Falling Walls Science Breakthrough of the Year 2023 in Humanities and Social Sciences
• 2022–2024 Past-president of the European Association for Personality Psychology (EAPP)
• 2022–2027 Member of the Scientific Advisory Board of the World Values Survey (WVS)
• 2020–2022 President of the European Association for Personality Psychology (EAPP)
• 2018–2020 President-elect of the European Association for Personality Psychology (EAPP)
• 2016–2024 Member of the Executive Committee of the European Association for Personality Psychology (EAPP)
• 2013–2019 Member of the Scientific Advisory Board of the European Social Survey ERIC
• 2012– Principal investigator for the World Values Survey in Estonia
• 2011–2013, Member of the Scientific Advisory Board of the European Social Survey, national representative
• 2011 Co-organizer of the European Science Foundation Programme “Quantitative Methods in the Social Sciences 2 (QMSS 2)” seminar “Combining biology and social science in life course studies” held in Helsinki, Finland on 8-9 September 2011
• 2010 Co-organizer of the EAPP expert meeting “Personality and Culture” held in Lausanne, Switzerland, from 29 September to 1 October 2010
• 2008–2012 Member of the Steering Committee of the European Science Foundation Programme “Quantitative Methods in the Social Sciences 2 (QMSS 2)”, national representative
• 2007–2008 Co-chair and a member of the Scientific Committee of the 14th European Conference on Personality (ECP14) held in Tartu, Estonia on 16-20 July 2008
• 2005– Board Member of the National Committee for the European Social Survey
• 2005–2007 Board Member of the National Committee for the Health Behaviour in School-Aged Children Study (HBSC)
• 1999–2002 Coordinator of the Fifth Framework Programme of the European Community for Research, Technological Development and Demonstration Activities at the Faculty of Social Sciences, University of Tartu
• 1997–1998 Principal organizer of the international conference on Multiculturalism: Diversity in Action held in Tartu on 6 May 1998