Martijn Schoonvelde
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Previous Organizations / Institutes
The organizations / institutes from the scholar's other articles in the past ten years
Martijn Schoonvelde has a total of 255 co-authors. Here are the top co-authors by number of shared publications:
- Gijs Schumacher
University of Amsterdam
4 shared publications - Christian Pipal
University of Zürich
3 shared publications Susan Banducci
University of Exeter, Exeter, United Kingdom
3 shared publicationsWilliam Pollock
Stony Brook University, NY, Stony Brook, United States
3 shared publications- Achim Edelmann
Médialab, Sciences-Po, Paris, France
2 shared publications - Alexander Langenkamp
Goethe University Frankfurt
2 shared publications
Latest Publications
- Open Access
- 12 November 2026
- Published by Springer Nature
- p. 189-213
Golden Age Politics: A Computational-Interpretive Analysis of the ‘Gouden Eeuw’ as a Trope in Dutch Parliamentary Speech, 1945–2024
- 12 November 2026
- Published by Springer Nature
- p. 189-213
Open AccessGolden Age Politics: A Computational-Interpretive Analysis of the ‘Gouden Eeuw’ as a Trope in Dutch Parliamentary Speech, 1945–2024
- 22 September 2026
- Published by Springer Nature in Acta Politica
- p. 1-20
Challenges for multilingual computational text analysis researchers: evidence from a survey of social scientists
- 22 September 2026
- Published by Springer Nature in Acta Politica
- p. 1-20
Challenges for multilingual computational text analysis researchers: evidence from a survey of social scientists
- Open Access
- 16 August 2026
- Published by Taylor & Francis in Journal of European Public Policy
- p. 1-27
Responding or responsiveness? How politicisation influences the European Commission's policy formulation
In contemporary European Union (EU) politics, the alignment of EU policies with citizen preferences has become a topic of intensive debate, especially as European integration has shifted from a ‘pe...
- 16 August 2026
- Published by Taylor & Francis in Journal of European Public Policy
- p. 1-27
Open AccessResponding or responsiveness? How politicisation influences the European Commission's policy formulation
In contemporary European Union (EU) politics, the alignment of EU policies with citizen preferences has become a topic of intensive debate, especially as European integration has shifted from a ‘pe...
- Open Access
- 12 August 2026
- Published by Wiley in Legislative Studies Quarterly
- Vol. 51 (3)
Moderation or Amplification? Mapping Speech Distinctiveness Among Green Parties Using a Machine Learning Approach
How do issue‐owning parties adapt their rhetoric when transitioning from opposition to government? Focusing on the Green parties in Germany and Ireland, we analyze legislative debates to trace how these parties seek to maintain ownership of environmental issues. Using more than 1.7 million parliamentary speeches from the German Bundestag (1991–2018) and the Irish Dáil (1992–2013), we apply a fictitious prediction problem approach implemented as a multiclass text‐classification task to measure distinctiveness in parties' legislative speeches. Our findings show that both parties increased their rhetorical distinctiveness on environmental issues during their first time in government, but with key differences: the Irish Greens maintained a distinct profile throughout their term, while the German Greens' distinctiveness increased as elections neared. No such patterns emerge for welfare, a non‐owned issue. Our study offers a framework and a transferable method for studying how smaller parties navigate between coalition influence and visibility through the issues they own.
- 12 August 2026
- Published by Wiley in Legislative Studies Quarterly
- Vol. 51 (3)
Open AccessModeration or Amplification? Mapping Speech Distinctiveness Among Green Parties Using a Machine Learning Approach
How do issue‐owning parties adapt their rhetoric when transitioning from opposition to government? Focusing on the Green parties in Germany and Ireland, we analyze legislative debates to trace how these parties seek to maintain ownership of environmental issues. Using more than 1.7 million parliamentary speeches from the German Bundestag (1991–2018) and the Irish Dáil (1992–2013), we apply a fictitious prediction problem approach implemented as a multiclass text‐classification task to measure distinctiveness in parties' legislative speeches. Our findings show that both parties increased their rhetorical distinctiveness on environmental issues during their first time in government, but with key differences: the Irish Greens maintained a distinct profile throughout their term, while the German Greens' distinctiveness increased as elections neared. No such patterns emerge for welfare, a non‐owned issue. Our study offers a framework and a transferable method for studying how smaller parties navigate between coalition influence and visibility through the issues they own.
- Open Access
- 19 March 2025
- Published by The Royal Society in Royal Society Open Science
- Vol. 12 (3) , 241038
The reliability of replications: a study in computational reproductions
This study investigates researcher variability in computational reproduction, an activity for which it is least expected. Eighty-five independent teams attempted numerical replication of results from an original study of policy preferences and immigration. Reproduction teams were randomly grouped into a ‘transparent group’ receiving original study and code or ‘opaque group’ receiving only a method and results description and no code. The transparent group mostly verified original results (95.7% same sign and p -value cutoff), while the opaque group had less success (89.3%). Second-decimal place exact numerical reproductions were less common (76.9 and 48.1%). Qualitative investigation of the workflows revealed many causes of error, including mistakes and procedural variations. When curating mistakes, we still find that only the transparent group was reliably successful. Our findings imply a need for transparency, but also more. Institutional checks and less subjective difficulty for researchers ‘doing reproduction’ would help, implying a need for better training. We also urge increased awareness of complexity in the research process and in ‘push button’ replications.
- 19 March 2025
- Published by The Royal Society in Royal Society Open Science
- Vol. 12 (3) , 241038
Open AccessThe reliability of replications: a study in computational reproductions
This study investigates researcher variability in computational reproduction, an activity for which it is least expected. Eighty-five independent teams attempted numerical replication of results from an original study of policy preferences and immigration. Reproduction teams were randomly grouped into a ‘transparent group’ receiving original study and code or ‘opaque group’ receiving only a method and results description and no code. The transparent group mostly verified original results (95.7% same sign and p -value cutoff), while the opaque group had less success (89.3%). Second-decimal place exact numerical reproductions were less common (76.9 and 48.1%). Qualitative investigation of the workflows revealed many causes of error, including mistakes and procedural variations. When curating mistakes, we still find that only the transparent group was reliably successful. Our findings imply a need for transparency, but also more. Institutional checks and less subjective difficulty for researchers ‘doing reproduction’ would help, implying a need for better training. We also urge increased awareness of complexity in the research process and in ‘push button’ replications.
- Open Access
- 18 October 2024
- Published by Taylor & Francis in Communication Methods and Measures
- Vol. 19 (2) , 112-130
JST and rJST: joint estimation of sentiment and topics in textual data using a semi-supervised approach
- 18 October 2024
- Published by Taylor & Francis in Communication Methods and Measures
- Vol. 19 (2) , 112-130
Open AccessJST and rJST: joint estimation of sentiment and topics in textual data using a semi-supervised approach
- Open Access
- 2 November 2023
- Published by Taylor & Francis in Journal of European Public Policy
- Vol. 31 (11) , 3591-3616
Unpacking the European Commission's fiscal policy response to crisis: mapping and explaining economic ideas in the European Semester 2011–2022
- 2 November 2023
- Published by Taylor & Francis in Journal of European Public Policy
- Vol. 31 (11) , 3591-3616
Open AccessUnpacking the European Commission's fiscal policy response to crisis: mapping and explaining economic ideas in the European Semester 2011–2022
- Top Cited PapersOpen Access
- 28 October 2022
- Published by National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 119 (44)
Observing many researchers using the same data and hypothesis reveals a hidden universe of uncertainty
This study explores how researchers’ analytical choices affect the reliability of scientific findings. Most discussions of reliability problems in science focus on systematic biases. We broaden the lens to emphasize the idiosyncrasy of conscious and unconscious decisions that researchers make during data analysis. We coordinated 161 researchers in 73 research teams and observed their research decisions as they used the same data to independently test the same prominent social science hypothesis: that greater immigration reduces support for social policies among the public. In this typical case of social science research, research teams reported both widely diverging numerical findings and substantive conclusions despite identical start conditions. Researchers’ expertise, prior beliefs, and expectations barely predict the wide variation in research outcomes. More than 95% of the total variance in numerical results remains unexplained even after qualitative coding of all identifiable decisions in each team’s workflow. This reveals a universe of uncertainty that remains hidden when considering a single study in isolation. The idiosyncratic nature of how researchers’ results and conclusions varied is a previously underappreciated explanation for why many scientific hypotheses remain contested. These results call for greater epistemic humility and clarity in reporting scientific findings.
- 28 October 2022
- Published by National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 119 (44)
Top Cited PapersOpen AccessObserving many researchers using the same data and hypothesis reveals a hidden universe of uncertainty
This study explores how researchers’ analytical choices affect the reliability of scientific findings. Most discussions of reliability problems in science focus on systematic biases. We broaden the lens to emphasize the idiosyncrasy of conscious and unconscious decisions that researchers make during data analysis. We coordinated 161 researchers in 73 research teams and observed their research decisions as they used the same data to independently test the same prominent social science hypothesis: that greater immigration reduces support for social policies among the public. In this typical case of social science research, research teams reported both widely diverging numerical findings and substantive conclusions despite identical start conditions. Researchers’ expertise, prior beliefs, and expectations barely predict the wide variation in research outcomes. More than 95% of the total variance in numerical results remains unexplained even after qualitative coding of all identifiable decisions in each team’s workflow. This reveals a universe of uncertainty that remains hidden when considering a single study in isolation. The idiosyncratic nature of how researchers’ results and conclusions varied is a previously underappreciated explanation for why many scientific hypotheses remain contested. These results call for greater epistemic humility and clarity in reporting scientific findings.
- Top Cited PapersOpen Access
- 27 December 2021
- Published by Taylor & Francis in Communication Methods and Measures
- Vol. 16 (1) , 1-18
Three Gaps in Computational Text Analysis Methods for Social Sciences: A Research Agenda
We identify three gaps that limit the utility and obstruct the progress of computational text analysis methods (CTAM) for social science research. First, we contend that CTAM development has prioritized technological over validity concerns, giving limited attention to the operationalization of social scientific measurements. Second, we identify a mismatch between CTAMs’ focus on extracting specific contents and document-level patterns, and social science researchers’ need for measuring multiple, often complex contents in the text. Third, we argue that the dominance of English language tools depresses comparative research and inclusivity toward scholarly communities examining languages other than English. We substantiate our claims by drawing upon a broad review of methodological work in the computational social sciences, as well as an inventory of leading research publications using quantitative textual analysis. Subsequently, we discuss implications of these three gaps for social scientists’ uneven uptake of CTAM, as well as the field of computational social science text research as a whole. Finally, we propose a research agenda intended to bridge the identified gaps and improve the validity, utility, and inclusiveness of CTAM.
- 27 December 2021
- Published by Taylor & Francis in Communication Methods and Measures
- Vol. 16 (1) , 1-18
Top Cited PapersOpen AccessThree Gaps in Computational Text Analysis Methods for Social Sciences: A Research Agenda
We identify three gaps that limit the utility and obstruct the progress of computational text analysis methods (CTAM) for social science research. First, we contend that CTAM development has prioritized technological over validity concerns, giving limited attention to the operationalization of social scientific measurements. Second, we identify a mismatch between CTAMs’ focus on extracting specific contents and document-level patterns, and social science researchers’ need for measuring multiple, often complex contents in the text. Third, we argue that the dominance of English language tools depresses comparative research and inclusivity toward scholarly communities examining languages other than English. We substantiate our claims by drawing upon a broad review of methodological work in the computational social sciences, as well as an inventory of leading research publications using quantitative textual analysis. Subsequently, we discuss implications of these three gaps for social scientists’ uneven uptake of CTAM, as well as the field of computational social science text research as a whole. Finally, we propose a research agenda intended to bridge the identified gaps and improve the validity, utility, and inclusiveness of CTAM.
- 19 December 2021
- Published by Wiley in JCMS: Journal of Common Market Studies
- Vol. 60 (4) , 903-925
Home Field Advantage? EU–ACP Economic Partnership Agreement Meeting Locations and Textual Tone
The European Union's Economic Partnership Agreements (EPAs) with countries in the African, Caribbean and Pacific (ACP) group are touted as a new form of equitable engagement. However, many argue that the EPAs simply substitute a different form of political and economic domination. In this paper, we consider if the siting of meetings has a substantive impact on EPA outcomes or media reporting thereof. Using a difference‐in‐difference like approach we evaluate if the tone and polarity of media reports about the EPAs during periods of ‘home’ meetings in the ACP countries differs from media reports during ‘away’ meetings in the EU. Using two different datasets we arrive at differing results, leading to inconclusive overall findings. While we suspect that the alternating meeting site norm has implications for EPA process and outcomes, further research will be needed to uncover the precise nature of these effects.
- 19 December 2021
- Published by Wiley in JCMS: Journal of Common Market Studies
- Vol. 60 (4) , 903-925
Home Field Advantage? EU–ACP Economic Partnership Agreement Meeting Locations and Textual Tone
The European Union's Economic Partnership Agreements (EPAs) with countries in the African, Caribbean and Pacific (ACP) group are touted as a new form of equitable engagement. However, many argue that the EPAs simply substitute a different form of political and economic domination. In this paper, we consider if the siting of meetings has a substantive impact on EPA outcomes or media reporting thereof. Using a difference‐in‐difference like approach we evaluate if the tone and polarity of media reports about the EPAs during periods of ‘home’ meetings in the ACP countries differs from media reports during ‘away’ meetings in the EU. Using two different datasets we arrive at differing results, leading to inconclusive overall findings. While we suspect that the alternating meeting site norm has implications for EPA process and outcomes, further research will be needed to uncover the precise nature of these effects.