Staff

Journal article

Roth, Matthias, and Ranjit K. Singh. 2025. "One harmonization fits all? – Impact of missing population invariance on harmonization error when harmonizing social science survey questions with equating." International Journal of Social Research Methodology online first: 1-14. doi: https://doi.org/10.1080/13645579.2025.2481112.

Singh, Ranjit K., and Matthias Roth. 2023. "Harmonizing data from open-ended and closed-ended quantity questions with observed score equating." Survey Research Methods 17 (2): 177-191. doi: https://doi.org/10.18148/srm/2023.v17i2.8087.

Chapter in an edited book

Jacobs, Babs, Tim Huijts, Roy Meijer, Matthias Bluemke, Clemens Lechner, Natascha Massing, Matthias Roth, Silke L. Schneider, and Ranjit K. Singh. 2025. "Derived variables and validation of background questionnaire data." In Survey of Adult Skills 2023 Technical Report, edited by OECD ., 297-329. Paris: OECD Publishing. doi: https://doi.org/10.1787/80d9f692-en.

Data/Software

Roth, Matthias, and Ranjit K. Singh. 2024. QuestionLink R-Package. https://matroth.github.io/questionlink/index.html.

Roth, Matthias, Nivedita Bhaktha, Matthias Blümke, Thomas Knopf, Fabienne Kraemer, Clemens Lechner, and Çağla E. Yıldız. 2024. resquin - response quality indicators. R-Package. doi: https://doi.org/10.32614/CRAN.package.resquin. https://cran.rstudio.com/web/packages/resquin/.

Presentation at a conference

Roth, Matthias, and Ranjit K. Singh. 2025. " One harmonization fits all? - Investigating the reusability of equating solutions across populations and time." ESRA 2025 : 11th Conference of the European Survey Research Association, Utrecht (The Netherlands), Universität Utrecht, 2025-07-16.

Rammstedt, Beatrice, Matthias Roth, Roemer Lena, and Clemens Lechner. 2025. "Der Zusammenhang zwischen kognitiven Kompetenzen und den Big Five Persönlichkeitseigenschaften im internationalen Vergleich." Invited Symposium: Programme for the International Assessment of Adult Competencies (PIAAC 2023): Aktuelle Ergebnisse in Deutschland und im internationalen Vergleich. Im Rahmen der 12. Tagung der Gesellschaft für Empirische Bildungsforschung, Universität Mannheim, Mannheim, 2025-01-28.

Sälzer, Christine, Raphael Heiberger, and Matthias Roth. 2025. "Does Higher Education Equalize? Occupational Prestige Among First-Generation Academics." International PIAAC Research Conference 2025, Dorint Hotel , Mannheim, 2025-09-30.

Roth, Matthias, Lena Roemer, and Ayline Heller. 2025. "Investigating measurement invariance across modes with moderated non-linear factor analysis – A case study using a scale on attitudes towards foreigners." 11th Conference of the European Survey Research Association (ESRA), Universität Utrecht, 2025-07-18.

Rammstedt, Beatrice, Lena Roemer, Matthias Roth, Anouk Zabal, and Clemens Lechner. 2025. "Revisiting Gender Differences in Personality: New Evidence on Big Five Domains and Facets with Large-Scale Samples from 27 Nations." International PIAAC Research Conference 2025, Dorint Hotel , Mannheim, 2025-09-30.

Roth, Matthias, and Ranjit K. Singh. 2025. "Will harmony last? - Harmonizing time series survey data with equating under challenging patterns of data availability." GOR 25: General Online Research Conference, Freie Universität Berlin, 2025-04-01.

Roth, Matthias. 2024. "A tentative framework to document the process of synthetic survey data generation with large language models." 15. Wissenschaftliche Tagung des ADM, der ASI und des Statistischen Bundesamtes am 20. und 21. Juni 2024 in Wiesbaden Thema "Datenerhebung, Datenqualität und Datenethik in Zeiten von künstlicher Intelligenz", Statistisches Bundesamt, Wiesbaden, 2024-06-21.

Roth, Matthias. 2024. "Ask a Llama - Creating variance in synthetic survey data." GOR 24: General Online Research Conference, Rheinische Fachhochschule Köln, Köln, 2024-02-22. doi: https://doi.org/10.17605/OSF.IO/CHBTR.

Roth, Matthias, and Ranjit K. Singh. 2023. "Ex-post Harmonisierung von Fragen zum gleichen Konstrukt mit Equating und Linear Stretching: Ist fehlende Populationsinvarianz ein Problem?" Gemeinsame Tagung der Arbeitsgemeinschaft sozialwissenschaftlicher Institute (ASI) und der DGS-Sektion „Methoden der empirischen Sozialforschung“, Technische Universität Dresden, Dresden, 2023-09-21.

Singh, Ranjit K., and Matthias Roth. 2022. "Augmenting a Cross-National Survey Dataset with National Survey Data Using Equating." International Workshop on Comparative Survey Design and Implementation Program (CSDI), Center for Data and Methods of Sciences Po, Paris, Aubervilliers, 2022-04-04.

Roth, Matthias, Miklós Bálint, Thomas Kastner, and Marion Mehring. 2021. "Analyse historischer Transformationen sozial-ökologischer Systeme anhand heterogener Datenquellen – eine Fallstudie aus Nord-Ost Deutschland." Komplexe Methodendesigns in der multi-, inter- und transdisziplinären Nachhaltigkeitsforschung Gemeinsame Frühjahrstagung der DGS-Sektionen „Methoden“ und „Umwelt“, Forschungszentrum Jülich, 2021-06-19.

Roth, Matthias, and Ranjit K. Singh. 2021. "Harmonizing frequency and quantity questions using equating." 9th Conference of the European Research Association (ESRA), Online, 2021-07-23.

Presentation not at a conference

Roth, Matthias. 2025. "Using the R-Package resquin to investigate the Quality of Survey Responses to Multi-Item Scales." GESIS Summerschool Lunchtime Talk, GESIS - Leibniz-Institut für Sozialwissenschaften, Köln, 2025-07-28.

Roth, Matthias. 2024. "Ask a Llama – Large Language Models als Quelle synthetischer Umfragedaten." 10. Research plus Rhein-Neckar der DGOF, Taproom Jungbusch, 2024-05-06. https://www.dgof.de/research-plus/research-plus-rhein-neckar-mannheim/.

Seminar

Roth, Matthias, and Lukas Birkenmaier. 2023. "Introduction to R - Online." GESIS - Leibniz-Institut für Sozialwissenschaften, Mannheim.

Roth, Matthias, and Lukas Birkenmaier. 2022. "R101 - GESIS Training Workshop (online)." GESIS - Leibniz-Institut für Sozialwissenschaften, Mannheim.

Other

Roth, Matthias, and Daniil Lebedev. 2025. "Survey response quality assessment: Conceptual approaches and practical indicators: Short Course at the 11th Conference of the European Survey Research Association (ESRA)." Universität Utrecht.

Knopf, Thomas, Matthias Roth, and Julian Urban. 2024. "KODAQS Academy Certification Programme: Data Quality Assessment for Response Scales."

Awards and prizes

Roth, Matthias. 2024. "GOR 24 Poster Award: Ask a Llama - Creating variance in synthetic survey data."