Sebastian Schultheiß


Hamburg University of Applied Sciences
Department of Information
Finkenau 35
22081 Hamburg
Room 270

Contact Information

Call: +49.40.428 75-3642


Sebastian Schultheiß

Research Assistant

Sebastian Schultheiß, M.A. is a research assistant and lecturer at the Department of Information at the Hamburg University of Applied Sciences. His research focuses on user studies on information behavior. In cooperation with Humboldt University of Berlin, Sebastian is also working on his doctoral research project dealing with search engine user knowledge gain and how it is influenced by external stakeholders.

Sebastian received his M.A. degree in Information, Media, Library in 2019 and his B.A. degree in Library and Information Management in 2016 from the Hamburg University of Applied Sciences, Germany. Before his studies he did an apprenticeship as a Specialist in Media and Information Services at the German National Library of Economics (ZBW).


Lewandowski, D., & Schultheiß, S. (2022). Public awareness and attitudes towards search engine optimization. Behaviour & Information Technology, 1–20. Preprint

Schultheiß, S., & Lewandowski, D. (2022). Data set of a representative online survey on search engines with a focus on search engine optimization (SEO): a cross-sectional study. F1000Research, 11(376).

Schultheiß, S.; Häußler, H.; Lewandowski, D. (2022). Does Search Engine Optimization come along with high-quality content?: A comparison between optimized and non-optimized health-related web pages. CHIIR '22: ACM SIGIR Conference on Human Information Interaction and Retrieval, 123–134. YouTube

Schultheiß, S.; Lewandowski, D. (2021): (Un)bekannte Akteure auf der Suchergebnisseite? Ein Vergleich zwischen selbst eingeschätzter und tatsächlich vorhandener Suchmaschinenkompetenz deutscher InternetnutzerInnen. In: T. Schmidt, C. Wolff (Hrsg.): Information between Data and Knowledge. Information Science and its Neighbors from Data Science to Digital Humanities. Proceedings of the 16th International Symposium of Information Science (ISI 2021), 218—246.

Schultheiß, S.; Lewandowski, D. (2021): ‘Outside the industry, nobody knows what we do’: SEO as seen by search engine optimizers and content providers. Journal of Documentation 77(2), 542-557.

Schultheiß, S.; Lewandowski, D. (2021): How users’ knowledge of advertisements influences their viewing and selection behaviour in search engines. Journal of the Association for Information Science and Technology 72(3), 285-301.

Lewandowski, D.; Sünkler, S.; Schultheiß, S.; Häußler, H.; Spree, U.; Behnert, C. (2021): The Search Studies Group at Hamburg University of Applied Sciences. Datenbank Spektrum.

Schultheiß, S.; Lewandowski, D. (2021): Misplaced trust? The relationship between trust, ability to identify commercially influenced results, and search engine preference. Journal of Information Science.

Lewandowski, D.; Sünkler, S.; Schultheiß, S. (2020): Studies on Search: Designing Meaningful IIR Studies on Commercial Search Engines. Datenbank Spektrum 20(1), 5-15.

Schultheiß, S.; Linhart, A.; Behnert, C.; Rulik, I.; Lewandowski, D. (2020): Known-item searches and search tactics in library search systems: Results from four transaction log analysis studies. Journal of Academic Librarianship 46(5), article 102202.

Schultheiß, S., Sünkler, S., & Lewandowski, D. (2018): We still trust in Google, but less than 10 years ago: an eye-tracking study. Information Research 23(3). Preprint

Kerkmann, F., Sünkler, S., & Schultheiß, S. (2017): Die Suche nach dem „Wie…“ – Tutorials als Gegenstand der Suche. Wissenschaft & Praxis 68(1), 58–66.


  1. 2019

    Master of Arts Information, Media, Library

    Hamburg University of Applied Sciences
  2. 2016

    Bachelor of Arts Library and Information Management

    Hamburg University of Applied Sciences

Professional Experience

  1. 2019 until today
    Research Assistant
    Hamburg University of Applied Sciences
  2. 2010-2013
    Training as Specialist in Media and Information Services (FaMI)
    ZBW – Leibniz Information Centre for Economics


  • 2021
    Gerhard Lustig Award for the best Master Thesis in Information Science 2017–2020
    Hochschulverband für Informationswissenschaft (HI)
  • 2018
    SUMA Scholarship
  • 2017
    Scholarship to attend the IFLA World Library and Information Congress 2017