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Dr. Gregor Čehovin, Assistant Professor

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  • Dr. Gregor Čehovin, Assistant Professor
    Contact:
    Phone: +386 1 58 05 313
    Email: is.jl-inu.vdf@nivohec.rogerg
    Office Hours:

    By prior arrangement via email.


    Room:
    A 212
    Courses:
    Expert sphere:

    Social science methodology Survey methodology Survey nonresponse Internet research Meta-analysis
  • Kdo sodeluje? / Who responds? V anketo povabimo 50 enot. 10 jih sodeluje, 40 jih ne sodeluje. / We invite 50 units to take part in a survey. 10 respond; 40 do not. ●●●●●●●●●●●●●●●●●●●●●●●●●
    ●●●●●●●●●●●●●●●●●●●●●●●●●     ■ Respondenti / Respondents   ■ Nerespondenti / Nonrespondents
    Naprej: kdo ne sodeluje? / Next: who does not respond?

    Za 40 nerespondentov nimamo podatkov (neodgovor enote). / For the 40 nonrespondents, we have no data (unit nonresponse).

    Ocene so pristranske, kadar se nerespondenti sistematično razlikujejo od respondentov (pristranskost zaradi neodgovorov). / Estimates are biased when nonrespondents differ systematically from respondents (nonresponse bias).

    Ilustrativni podatki / Illustrative figures

  • Gregor Čehovin is a research fellow and assistant professor at the Faculty of Social Sciences, University of Ljubljana, Slovenia. His primary research interests are survey methodology, particularly nonresponse, systematic reviews, and meta-analysis.

    His work also encompasses statistical analyses in survey methodology; the management and analysis of web survey data; methodological collaboration on surveys and other experimental studies; contributions to the development of the 1KA web survey software; teaching survey methodology; and interdisciplinary scientific collaboration with the research group on various survey research projects. He holds a PhD in social science methodology from the Faculty of Social Sciences, University of Ljubljana.

    Areas of expertise

    Social science methodology Survey methodology Survey nonresponse Internet research Meta-analysis

    ORCID iD iconhttps://orcid.org/0000-0002-9431-3694

    Active research projects and programs

    • Assessing and modelling unit nonresponse bias in probability-based web surveys
      ARIS J5-50159 · 10/01/2023 – 09/30/2026
    • Digital transformation of health and social care: Welfare technology acceptance and knowledge among current and future healthcare and social care professionals
      ARIS J5-4578 · 10/01/2022 – 09/30/2026
    • Internet research
      ARIS P5-0399 · 01/01/2015 – 12/31/2024

    Honors and awards

    Excellent in Science 2019
    Most Outstanding Research Achievements in Inspiration to the Younger Generation

    Awarded by the Slovenian Research Agency for the scientific paper:

    Čehovin, G., Bosnjak, M., & Lozar Manfreda, K. (2018). Meta-Analyses in Survey Methodology: A Systematic Review. Public Opinion Quarterly, 82(4), 641–660. https://doi.org/10.1093/poq/nfy042

    Past research projects and programs

    • Slovenian experience from international operations and missions
      Ministry of Defence · 09/2024 – 12/2024
    • Analysis of research infrastructures to strengthen national and EU research capacities
      ARIS V5-2283 · 10/01/2022 – 12/31/2024
    • Evaluating probability and nonprobability online panels
      ARIS J5-3100 · 10/01/2021 – 09/30/2025
    • Outside the ballot box: Youth perceptions and practices of political participation
      ARIS J5-3109 · 10/01/2021 – 09/30/2025
    • Probability web panels in national statistics for persons and households
      ARIS V5-2157 · 09/01/2021 – 08/31/2024
    • Using paradata to evaluate response quality in surveys
      ARIS J5-9334 · 07/01/2018 – 06/30/2021
    • Digital transformation of quantitative data collection in social science research: Integrating survey data collection with big data and paradata for identifying social behaviour
      ARIS NI-0004 · 10/01/2018 – 09/30/2020
    • Integration of mobile devices into survey research in social sciences: Development of a comprehensive methodological approach
      ARIS J5-8233 · 05/01/2017 – 04/30/2020
    • Evidence-based survey methodology: Contemporary topics
      ARIS BI-DE/18-19-009, DAAD 57402391 · 01/01/2018 – 12/31/2019
    • Better data to assess the impact of ICT, R&D and innovation on the economy
      European Commission, Eurostat, 2016/S 089-155808 · 11/2016 – 09/2017
    • Automation of survey questionnaire development and evaluation
      ARIS J5-6817 · 07/01/2014 – 06/30/2017
    • Methodology of social research within the context of e-social science
      ARIS J5-5538 · 08/01/2013 – 07/31/2016
    • Social science methodology, statistics and informatics
      ARIS P5-0168 · 01/01/2009 – 12/31/2014
    • Information and communication technologies and the transformation of survey research in the social sciences
      ARIS J5-4177 · 07/01/2011 – 06/30/2014

  • Personal bibliography (COBISS) »

    Scientific publications

    2026

    • Vehovar, V., & Čehovin, G. (2026). Using web survey paradata to analyze response quality, respondent characteristics, and survey estimates: A state-of-the-art review and typology. Journal of Survey Statistics and Methodology.
      https://doi.org/10.1093/jssam/smag003 · COBISS.SI-ID 288385283
    • Čehovin, G., & Vehovar, V. (2026). Probability-based web panels for official statistics: Basic insights and analysis of the bias of survey estimates. Statistika, 106(2), 164–179.
      https://doi.org/10.54694/stat.2025.28 · COBISS.SI-ID 288484099

    2025

    • Bartol, J., Bošnjak, M., Vehovar, V., Čehovin, G., & Petrovčič, A. (2025). Big Five personality dimensions and disintegration as antecedents of vertical and horizontal internet privacy concerns. Cyberpsychology, 19(3), art. 9.
      https://doi.org/10.5817/CP2025-3-9 · COBISS.SI-ID 243560451

    2024

    • Vehovar, V., Berzelak, J., & Čehovin, G. (2024). Identifying a set of key paradata indicators in web surveys based on the relationship with response quality, respondent characteristics and survey estimates. Survey Research Methods, 18(3), 225–249.
      https://doi.org/10.18148/srm/2024.v18i3.8304 · COBISS.SI-ID 220207107

    2023

    • Čehovin, G., Bošnjak, M., & Lozar Manfreda, K. (2023). Item nonresponse in Web versus other survey modes: A systematic review and meta-analysis. Social Science Computer Review, 41(3), 926–945.
      https://doi.org/10.1177/08944393211056229 · COBISS.SI-ID 99554819
    • Vehovar, V., Couper, M. P., & Čehovin, G. (2023). Alternative layouts for grid questions in PC and mobile web surveys: An experimental evaluation using response quality indicators and survey estimates. Social Science Computer Review, 41(6), 2122–2144.
      https://doi.org/10.1177/08944393221132644 · COBISS.SI-ID 125849091

    2022

    2018

    • Čehovin, G., Bošnjak, M., & Lozar Manfreda, K. (2018). Meta-analyses in survey methodology: A systematic review. Public Opinion Quarterly, 82(4), 641–660.
      https://doi.org/10.1093/poq/nfy042 · COBISS.SI-ID 35940445

    2017

    • Fink-Hafner, D., Kustec, S., Čehovin, G., & Železnik, A. (2017). Slovenia’s parliamentary elite: Representation and accountability since 1992. Teorija in praksa, 54(Special issue), 60–79, 158.
      http://www.dlib.si/details/URN:NBN:SI:DOC-OEDKZSI7 · COBISS.SI-ID 35064925

    2014

    • Hafner-Fink, M., Kustec, S., Fink-Hafner, D., & Čehovin, G. (2014). Determinants of voter behaviour at presidential elections in a post-socialist context: The case of Slovenia. Družboslovne razprave, 30(75), 7–27.
      http://www.dlib.si/details/URN:NBN:SI:DOC-K7G6EYZH · COBISS.SI-ID 32637789

    Conferences and events

    2025

    • Čehovin, G., Vehovar, V., Praček, A., Štrlekar, L., & Ivanovska, A. (2025). Assessing bias in survey estimates: Comparing probability-based and nonprobability web panels to traditional probability-based surveys. European Survey Research Association (ESRA) Conference 2025, Utrecht, July 14–18, 2025.
      https://www.europeansurveyresearch.org/conf2025/progGlance.php?sess=219#754 · COBISS.SI-ID 243529219
    • Praček, A., Čehovin, G., & Vehovar, V. (2025). Balancing costs and errors in probability-based survey recruitment: Lessons from a web panel experiment. European Survey Research Association (ESRA) Conference 2025, Utrecht, July 14–18, 2025.
      https://www.europeansurveyresearch.org/conf2025/progGlance.php?sess=219#746 · COBISS.SI-ID 243535875
    • Bartol, J., Bošnjak, M., Vehovar, V., Čehovin, G., & Petrovčič, A. (2025). Effects of the Big Five personality dimensions and disintegration on vertical and horizontal internet privacy concerns [Presentation]. 75th annual ICA conference “ICA@75: Disrupting and Consolidating Communication Research”, Denver, CO, June 12–16, 2025.
      COBISS.SI-ID 243543555
    • Čehovin, G., Vehovar, V., Praček, A., Štrlekar, L., & Forte, K. (2025). Comparing probability-based and nonprobability web panels to traditional probability-based surveys: Analyzing bias in survey estimates [Presentation]. CIPHER 2025, Washington, D.C., February 27–28, 2025.
      COBISS.SI-ID 229394179
    • Praček, A., Vehovar, V., Čehovin, G., & Forte, K. (2025). Optimal recruitment strategy for a probability-based web panel: Cost and error integration [Presentation]. CIPHER 2025, Washington, D.C., February 27–28, 2025.
      COBISS.SI-ID 229396739

    2024

    • Hvalič Touzery, S., Čehovin, G., Pesjak, K., Pivač, S., & Dolničar, V. (2024). Exploring technology-based ageism in healthcare: Nurses’ and nursing students’ perspectives on welfare technologies for older patients [Presentation]. 10th ECREA European Communication Conference, Ljubljana, September 24–27, 2024. Abstract in: ECREA 2024: Communication & social (dis)order: Book of abstracts (p. 398). CZECH-IN.
      https://ecrea2024ljubljana.eu · COBISS.SI-ID 208730627, 209696259
    • Vehovar, V., Čehovin, G., Praček, A., & Štrlekar, L. (2024). Evaluation of probability-based web panels: Integrated cost-error perspective [Presentation]. Panel Survey Methodology Workshop 2024, Utrecht, July 10–12, 2024.
      COBISS.SI-ID 212297219

    2023

    2022

    • Čehovin, G., & Vehovar, V. (2022). Ankete v sodobnem družboslovnem raziskovanju: ali neverjetnostni spletni paneli lahko nadomestijo verjetnostne vzorce [Surveys in contemporary social science research: Can nonprobability online panels replace probability samples?]. In: M. Ignjatović, A. Kanjuo-Mrčela, & R. Kuhar (Eds.), Socio-ekološka transformacija: Slovensko sociološko srečanje, Ljubljana, 4. in 5. november 2022 (pp. 204–209). Slovensko sociološko društvo.
      https://www.sociolosko-drustvo.si/wp-content/uploads/2022/11/SSD-ZBORNIK-PRISPEVKOV-22-WEB-OK.pdf · COBISS.SI-ID 130785027
    • Čehovin, G., & Vehovar, V. (2022). Online survey panels in modern social science research: Can non-probability sampling replace probability sampling? In: A. Kastrin & L. Lusa (Eds.), Applied statistics 2022: International conference: Abstracts and program, September 19–21, 2022, Ljubljana, Slovenia (p. 47). Statistical Society of Slovenia.
      https://akastrin.si/as/as-book-2022.pdf · COBISS.SI-ID 127348739

    2020

    • Čehovin, G., & Berzelak, J. (2020). Designing grid questions in smartphone surveys: A review of current practice and data quality implications. In: B. Struminskaya (Ed.), 22nd General Online Research Conference, virtual, September 10–11, 2020 (p. 62). German Society for Online Research.
      https://www.gor.de/wp-content/uploads/2020/08/GOR20_ConferenceProceedings.pdf · COBISS.SI-ID 28610819

    2019

    2017

    • Čehovin, G., & Vehovar, V. (2017). Konceptualizacija prekinitev v spletnih anketah [Conceptualization of breakoffs in web surveys]. In: M. Ignjatović (Ed.), Sociološka imaginacija kot potencial družbenih sprememb v 21. stoletju: zbornik povzetkov, Slovensko sociološko srečanje 2017, 28.–30. september 2017, Otočec (pp. 30–31). Slovensko sociološko društvo.
      COBISS.SI-ID 35202397
    • Čehovin, G., & Matjašič, M. (2017). Sistematičen pregled glavnih funkcionalnosti [Systematic overview of the main functionalities] [Presentation]. Web Survey Day, Faculty of Social Sciences, Ljubljana, September 21, 2017.
      COBISS.SI-ID 36152157
    • Čehovin, G., Bošnjak, M., & Lozar Manfreda, K. (2017). Meta-analysis in survey methodology. European Survey Research Association (ESRA) Conference 2017, Lisbon, July 17–21, 2017.
      https://www.europeansurveyresearch.org/conference/programme2017?sess=69#339 · COBISS.SI-ID 35104861
    • Čehovin, G., & Vehovar, V. (2017). Implications of disposition codes for monitoring breakoffs in web surveys. 19th General Online Research Conference (GOR 17), Berlin, March 15–17, 2017.
      https://www.gor.de/gor17/index.php?page=browseSessions&form_session=18&presentations=show · COBISS.SI-ID 34803037

    2016

    • Čehovin, G. (2016). Meta-analize v anketni metodologiji: sistematični pregled [Meta-analyses in survey methodology: A systematic review]. In: S. Rožman & T. Kogovšek (Eds.), Različni obrazi migracij: zbornik povzetkov (pp. 21–22). Slovensko sociološko društvo.
      COBISS.SI-ID 34447709
    • Čehovin, G. (2016). Napredne možnosti statističnih analiz [Advanced options of statistical analyses] [Presentation]. Web Survey Day, Faculty of Social Sciences, Ljubljana, September 29, 2016.
      COBISS.SI-ID 34801757
    • Čehovin, G., & Matjašič, M. (2016). Sistematičen pregled funkcionalnosti [Systematic 1KA functionality overview] [Presentation]. Web Survey Day, Faculty of Social Sciences, Ljubljana, September 29, 2016.
      COBISS.SI-ID 34801501
    • Čehovin, G., Lozar Manfreda, K., & Bošnjak, M. (2016). Meta-analyses in survey research: A systematic review. RC33 9th International Conference on Social Science Methodology, Leicester, September 11–16, 2016. Abstract in: Book of abstracts. University of Leicester.
      http://www2.le.ac.uk/departments/sociology/research/rc33-conference/rc33-book-of-abstracts-v1.1 · COBISS.SI-ID 34271069
    • Čehovin, G., & Vehovar, V. (2016). Introduction breakoffs, questionnaire breakoffs and web questionnaire length: A metastudy. 71st Annual Conference of the American Association for Public Opinion Research (AAPOR), Austin, TX, May 12–15, 2016. Abstract in: Reshaping the research landscape: Public opinion and data science: 2016 conference abstracts. AAPOR.
      http://www.aapor.org/AAPOR_Main/media/MainSiteFiles/Abstract-Book-16-Final.pdf · COBISS.SI-ID 34028381

    2015

    • Lozar Manfreda, K., Čehovin, G., Petrič, G., & Petrovčič, A. (2015). Timing of email invitations to web surveys. Webdatanet.
      COBISS.SI-ID 33397597
    • Čehovin, G., & Matjašič, M. (2015). Sistematičen pregled funkcionalnosti 1KA [Systematic 1KA functionality overview] [Presentation]. Web Survey Day, Faculty of Social Sciences, Ljubljana, September 17, 2015.
      COBISS.SI-ID 34801245

    2014

    2013

    • Čehovin, G. (2013). Pregledna delavnica 1KA [1KA overview workshop] [Presentation]. Web Survey Day, Faculty of Social Sciences, Ljubljana, September 26, 2013.
      COBISS.SI-ID 32588637

    2012

    • Čehovin, G. (2012). Nadaljevalna delavnica 1KA [1KA continuation workshop] [Presentation]. Web Survey Day, Faculty of Social Sciences, Ljubljana, November 14, 2012.
      COBISS.SI-ID 32591197


    Personal bibliography