Dr. Jernej Berzelak, Teaching Assistant

General Information
  • Dr. Jernej Berzelak, Teaching Assistant
      Phone: +386 1 58 05 366
      Email: is.jl-inu.vdf@kalezreb.cjen
      Office Hours:

      B 106
      Expert sphere:
      Statistics: data analytics, multivariate analysis, statistical modelling, statistical programming
      Survey methodology: measurement instruments, questionnaire development and evaluation, survey quality assurance, survey operations management, nonresponse analysis, sampling and weighting
      Social science methodology: design and management of quantitative studies, evaluation studies, analysis of secondary data, reviews and synthesis of literature
      Informatics: database management, web metrics and web analytics
    • Education
      • 2014: Doctorate degree in Statistics (University of Ljubljana, Faculty of Social Sciences)
      • 2008: Bachelor's degree in Sociology (University of Ljubljana, Faculty of Social Sciences)
      University of Ljubljana, Faculty of Social Sciences:
      • since 2019: Chair of Centre for Social Informatics
      • since 2014: Researcher
      • 2008-2014: Research assistant
      • 2005-2008: Student assistant
      The Peace Institute – Institute for Contemporary Social and Political Studies:
      • since 2020: Researcher
      Selected other expert collaborations
      • since 2016: Member of the Methodological Council of the Statistical Office of the Republic of Slovenia
      • 2019: Sampling design for an instrument for online assessment of competences (Slovenian Institute of Adult Education)
      • 2016-2017: Career Tracking Survey of Doctorate Holders (European Science Foundation)
      • 2012-2015: Introduction to web surveys course (GESIS Summer School in Survey Methodology)
      Current main fields of work: applied survey methodology, applied statistical analysis, measurement errors in surveys, questionnaire development and design

      Selected projects in the last five years
      • Evaluation of the integrated care projects (Slovenian Ministry of Health, 2020–)
      • Political and Media Populism: “Refugee crisis” in Slovenia and Austria (Slovenian Research Agency, 2020–)
      • Factors impacting intention to use smart technology enabled care services among family carers of older people in the context of long-distance care (Slovenian Research Agency, 2019–)
      • New clean energy communities in a changing European energy system (EC Horizon 2020, 2019–)
      • Using paradata to evaluate response quality in surveys (Slovenian Research Agency, 2018–)
      • Digital transformation of quantitative data collection in social science research: Integrating survey data collection in social science research: Integrating survey data collection with big data and paradata for identifying social behaviour (Slovenian Research Agency, 2018–)
      • Evaluation of pilot projects in long-term care (Slovenian Ministry of Health, 2018–)
      • Research programme Internet research (Slovenian Research Agency, 2015–)
      • 1KA web survey software (2008–)
      • Integration of mobile devices into survey research in social sciences (Slovenian Research Agency, 2017–2020)
      • Better data to assess the impact of ICT, R&D and Innovation on the economy (Eurostat, 2016–2017)
      • Synergies for Europe's Research Infrastructures in the Social Sciences (EC ERIC, 2016–2018)
      • Social aspects of the organ donation in Slovenia (Slovenian Research Agency, 2016–)
      • Digital inclusion and active ageing (Slovenian Research Agency, 2015–2017)
      • European Social Survey (European Research Infrastructure Consortia, 2014–2016)
      • PIAAC – Programme for the International Assessment of Adult Competencies (2013–2016)
    • Publications in scientific journals and books:
      • Berzelak, J., Avsec, D. in Kamin, T. (2019). Reluctance and willingness for organ donation after death among the Slovene general population. Zdravstveno varstvo: Slovenian journal of public health, 58(4): 155–163.
      • Berzelak, J. and Vehovar, V. (2018). Mode effects on socially desirable responding in web surveys compared to face-to-face and telephone surveys. Metodološki zvezki, 15(2), 21–43.
      • Kamin, T., Berzelak, J., and Ule, M. (2017). Mind the gap: social aspects of willingness for post-mortem organ donation in Slovenia. Teorija in praksa, 54(5), 732–746.
      • de Leeuw, E. and Berzelak, J. (2016). Survey mode or survey modes? In C. Wolf (ed.), The Sage handbook of survey methodology. Los Angeles, CA, US: Sage
      • Zajc, P. and Berzelak, J. (2016). Riding styles and characteristics of rides among Slovenian mountain bikers and management challenges. Journal of Outdoor Recreation and Tourism, 15, 10-19.
      • Berzelak, J., Vehovar, V., and Lozar Manfreda, K. (2015). Web mode as part of mixed-mode surveys of the general population: An approach to the evaluation of costs and errors. Advances in Methodology and Statistics, 12(2), 45–68.​
      • Kamin, T., Berzelak, J., and Ule, M. (2012). The influence of education on differences in depressive symptoms between men and women in Slovenia. Zdravstveno varstvo (Healthcare), 51(1), 33–42.
      • Vehovar, V., Slavec, A., and Berzelak, J. (2012). Costs and errors in fixed and mobile phone surveys. In L. Gideon (ed.), Handbook of survey methodology for the social sciences. New York, NY, US: Springer.
      • Vehovar, V., Berzelak, J., and Lozar Manfreda, K. (2010). Mobile phones in an environment of competing survey modes: applying metric for evaluation of costs and errors. Social Science Computer Review, 28(3), 303–318.
      • Berzelak, J. and Vehovar, V. (2009). Information technology in survey research. In M. Khosrow-Pour (ed.), Encyclopedia of information science and technology. Hershey, PA, US: Information Science Reference.
      • Vehovar, V., Berzelak, J., and Lozar Manfreda, K. (2009). The technological revolution in survey data collection. In M. Pagani (ed.), Encyclopedia of multimedia technology and networking (pp. 1373–1378). Hershey, PA, US: Information Science Reference.
      • Lozar Manfreda, K., Bosnjak, M., Berzelak, J., Haas, I., and Vehovar, V. (2008). Web surveys versus other survey modes: A meta-analysis comparing response rates. International Journal of Market Research, 50(1), 79–104.
      • Lozar Manfreda, K., Berzelak, J., Vehovar, V. (2006). Software tools for social science surveys on the web. Theory and Practice, 43(5–6), 792–813.

      Personal bibliography