Cross-national Research | Adam Stefkovics, PhD

I conduct extensive cross-national research, particularly in the field of comparative public opinion and survey methodology. Since 2021, I have served as the National Coordinator of the European Social Survey (ESS) in Hungary. The ESS is one of Europe’s leading cross-national research infrastructures, conducted every two years across more than 30 countries, with the aim of measuring attitudes, values, and behavioral patterns using rigorous methodological standards and high-quality probability sampling.

Together with Bence Ságvári and Vera Messing at the ELTE Centre for Social Sciences, we work not only on implementing the ESS in Hungary, but also on methodological innovations, experiments, and the broader dissemination and promotion of ESS data and research. Our work includes studies on nonresponse, interviewer effects, questionnaire design, and emerging methodological challenges related to digitalization and declining participation in surveys.

I have also participated in the coordination of the Project Europe at the Századvég Foundation since 2016. This project is another large-scale comparative European survey initiative involving more than 30 countries, focusing on social, political, and economic attitudes across Europe.

Project Links

European Social Survey (ESS) - Hungary: Information about the Hungarian implementation, methodologies, and data dissemination.

Visit ESS Hungary

Project Europe: A large-scale comparative survey focused on social, political, and economic attitudes coordinated by the Századvég Foundation.

Visit Project Europe

Selected Publications

Stefkovics, Á. (2026). Gender-of-Interviewer Effects in the Measurement of Gender Attitudes: Lessons from 18 Countries of the European Social Survey. Public Opinion Quarterly, nfag022.

DOI: 10.1093/poq/nfag022

Stefkovics, Á., & Messing, V. (2026). He Said, She Said: Gender-of-Interviewer Effects and the Role of the Interviewers’ Gender Attitudes in the Hungarian ESS Round 11. Journal of Survey Statistics and Methodology, 1(1), 1.

DOI: 10.1093/jssam/smaf012

Stefkovics, A., Batiz, K., Zsófia Grubits, B., & Ligeti, A. S. (2025). What Types of Survey Questions are Prone to Interviewer Effects? Evidence Based on 29,000 Intra-Interviewer Correlations From 28 Countries of the European Social Survey. Sociological Methods & Research, 0(0), 1–34.

DOI: 10.1177/00491241251372509

Stefkovics, Á., Ágoston, C., Bukovenszki, E., Dúll, A., Hortay, O., & Varga, A. (2024). Climate change worry in the times of the COVID-19 pandemic. Evidence from two large-scale European surveys. Climate Risk Management, 44.

DOI: 10.1016/j.crm.2024.100599

Stefkovics, Á., & Zenovitz, L. (2023). Global warming vs. climate change frames: revisiting framing effects based on new experimental evidence collected in 30 European countries. Climatic Change, 176(12), 1–16.

DOI: 10.1007/s10584-023-03633-x