dr. M. Rosema (Martin)

OVERVIEW

Martin Rosema is an assistant professor of political science and head of the Public Administration department at the University of Twente. Before joining our university, he studied political science at Leiden University and social psychology at the University of Cambridge. In 2004, he earned a Ph.D. degree from Leiden University with a thesis about the psychology of voting in democratic elections. Since arriving at Twente, Martin has served on numerous professional committees and has held several board and editorial roles. He is frequently consulted by the media, as well as national and local governments and other organisations, for his expertise on elections and referendums.

In the bachelor programme in Public Administration (MS&T), Martin teaches several courses about political institutions and decision-making, as well as research methods. He also teaches a university-wide minor for board members of student organisations, which deals with the topics of governance, policy-making and leadership. Finally, he is involved in an interdisciplinary master course about technology and behaviour.

In his research, Martin currently focuses on digital democracy (especially decision support systems, such as voting advice applications), democratic innovations, and the use of modern technologies like virtual reality and brainimaging to study the interplay between emotions, attitudes and political behaviour. His past research focused primarily on elections and referendums. He published on topics such as voter decision making, attachments with political parties, electoral turnout, voting advice applications, quality of political representation, and local and national referendums.

For more about the course of Martin's life, please refer to his biography below. For more detailed information about his teaching, research and media contributions, please visit the other pages on this website via the menu above. 

BIOGRAPHY

The early years

Martin Rosema was born in 1970 in Hengelo, just six kilometers from his current office at the University of Twente. However, he took a bit of a detour to get there.

At the age of 12, Martin left the region of Twente and moved with his parents and sister to Maastricht. After finishing high school, he briefly experienced life as an accountant at KPMG and as a sergeant in the army during his conscription. At that moment, the government abolished compulsory military service—an example of correlation, not causation, Martin wishes to point out. He learned how to fire bullets and grenades, as well as how to drink beer. The latter proved more useful in his later life than the former.

Leiden and Cambridge

When he realised that these positions did not bring him much happiness, Martin decided to go to university. He chose the one located conveniently between the three Dutch cities where most of his favourite pop concerts took place and thus landed at Leiden University. He opted for the subject of political science, simply because he found it most interesting. He specialised in empirical political science and completed a minor in social psychology. Perhaps an interesting fact in light of his later career: the two courses he scored lowest in were political psychology and research methods.

At the time, students in the Netherlands received financial support from the government for a maximum of five years. Martin completed his master degree one week before this period ended—an instance of causation, he is willing to admit. His thesis focused on psychological explanations of voting behaviour and presented analyses of party choice in Dutch elections. He got the taste for doing research and, encouraged by his supervisors Galen Irwin and Joop van Holsteyn, soon after started a Ph.D. project on the same topic at Leiden.

During his Ph.D., Martin paused the project for a year to study at the University of Cambridge. He pursued a master programme in social and developmental psychology in order to better understand how the human mind works. He also learned how to cook a full English breakfast and how to punt a boat on the local river. Neither of these skills proved very useful for his later life.

When his doctoral thesis neared completion, Martin applied for a four-year position as assistant professor of political science in Jacques Thomassen’s group at the University of Twente. To his delight, he was offered the position, which a few years later would become permanent. Nearly 20 years after leaving the region as a school kid, he thus returned to Twente as a university lecturer.

Teaching, research and service

Since joining the University of Twente in 2001, Martin has developed and taught around thirty different courses at both bachelor and master level. His teaching has spanned a wide array of topics in the fields of political science, governance studies, and research methods. Students have nominated him multiple times for the best teacher award—though he always, and deservedly so, ended behind the same colleague. He spent short periods as guest lecturer at University College Utrecht (2006) and Radboud University in Nijmegen (2019), in order to teach courses about democracy and democratisation.

In his research, the topics of elections and referendums have been central, with a special focus on the psychology of voting. He published on topics such as voter decision making, attachments with political parties, voting advice applications, electoral turnout, and local and national referendums. Much of this he did in collaboration with some of the brightest and nicest colleagues on the planet. Other recurring themes in his work are political psychology and the quality of political representation.

Martin has frequently been consulted by national and local government bodies, a range of societal organisations, and the media—usually, because of his great expertise on elections and referendums; occasionally, because they just could not get anyone else. He has also served in several editorial and board roles. Because academic scholars often like facts and numbers, let us provide a few more details: he was co-editor of the academic journals Res Publica (2007-2010) and Political Psychology (2015-2018), co-director of the Dutch Parliamentary Election Study (2006), Dutch coordinator of the European Parliament Candidate Study (2009), and member of the governing bodies of the International Society of Political Psychology (2006-2011) and the Dutch Political Science Association (2009-2015). Over the years, he has additionally served in all sorts of professional committees and organised numerous workshops and panels at conferences hosted by organisations known to their target audiences by the abbreviations ECPR, ISPP, NIG, and NKWP—kudos to anyone who knows exactly what they all stand for. Since January 2026, he is the head of the Public Administration department in Twente.

In his current research, Martin focuses mainly on digital democracy (especially decision support systems, such as voting advice applications), democratic innovations, and the use of modern technologies like virtual reality and brainimaging to study the interplay between emotions, attitudes and political behaviour. Most of his paid time, however, is spent on teaching. This presently includes courses about the themes of governance, policy-making, leadership, European politics and experimental research methods.

Life beyond academia

In his free time, Martin enjoys listening to music and visiting modern art museums. His love for music is reflected in his broad collection of 7-inch records from the 1980s ('from ABBA to Zappa') and his frequent participation in an online pop music quiz on Friday evenings. His affinity for art is evident in the fact that he regularly gives guided tours and short talks about Piet Mondrian at a museum devoted to this iconic painter in his birthplace, Amersfoort. Speaking of birthplaces, do you remember where Martin was born? If not, feel free to go back to the beginning of this bio. Thanks a lot for reading and making it to the end! 

Organisations

RESEARCH

In his research, Martin Rosema currently focuses mainly on digital democracy (especially decision support systems, such as voting advice applications) and the use of modern technologies like virtual reality and brainimaging to study the interplay between emotions, attitudes and political behaviour. Furthermore, he is one of the initiators of a national consortium of academic and societal organisations that are interested in democratic innovations, which is funded by the Dutch Research Council: the REDRESS project.

In Martin's past research, the topics of elections and referendums have been central, with a particular focus on the psychology of voting. He published on topics such as voter decision making, attachments with political parties, electoral turnout, and local and national referendums. Other recurring themes in his research are political psychology and the quality of political representation. For more information about his past and current research projects, please select the 'Projects' option in the menu above.

Below is a list of his recent publications. For a more extensive overview, please select the 'Projects' page on this website or his profile on Google Scholar.

Publications

Research profiles

EDUCATION

Since joining the University of Twente in 2001, Martin Rosema has developed and taught about thirty different courses at bachelor and master level covering a broad range of topics in the fields of political science, governance studies, and research methods. Students have nominated him multiple times for the best teacher award.

Currently, Martin teaches several courses about governance, politics, and research methods in the bachelor programme in Public Administration (MS&T). This includes the project EuroSim, an international simulation of EU decision-making with about 150 students from 20 European and American universities. He additionally teaches a university-wide minor for board members of student organisations, which focuses on the topics of governance, policy-making and leadership. Finally, he is involved in an interdisciplinary master course about technology and behaviour.

For more detailed information about the content and format of his courses, please visit the Osiris website. For an overview of his past courses, see below.

PAST TEACHING

Below is an overview of Martin's courses from previous years. He has additionally supervised numerous students individually, for internships and bachelor and master theses.

Bachelor level courses in political science

• Citizenship in the digital age
• Comparative governance and politics
• Comparative politics: democratisation (Radboud University)
• Democracy in theory and practice
• Democratic dilemmas of European governance
• Democratic legitimacy
• Empirical political science and the study of democracy (University College Utrecht)
• European politics
• European Union simulation
• Introduction to political science
• Legitimacy in the European Union
• Project constitution building
• Structure and quality of government

Bachelor level courses in governance studies

• Fundamentals of governance
• Global and European challenges
• Governance: an introduction
• Governance: interdisciplinary perspectives
• Governance of student organisations
• Leadership theory and practice
• Policy studies
• Project performance management

Courses in research methodology

• Analysis and persuasion: from numbers to stories (inter-university research master)
• Experimental research methods
• Qualitative research
• Research design (master level)
• Research methodology (Leiden University)
• Research practical: scale construction and factor analysis 
• Student organisation research project
• Workshop statistical design

Master level courses

• Comparative public governance
• Electoral behaviour
• Emotions and politics (Leiden University)
• Political-bureaucratic relations
• Public governance and legitimacy

Courses academic year 2026/2027

Courses in the current academic year are added at the moment they are finalised in the Osiris system. Therefore it is possible that the list is not yet complete for the whole academic year.

Courses academic year 2025/2026

Courses academic year 2024/2025

PAGE UNDER CONSTRUCTION

PROJECTS

This page presents an overview of the main research projects in which Martin Rosema has been involved over the years. Below, he describes each project briefly and the corresponding publications are listed (please note that some publications appear under two projects). The projects are ordered alphabetically.

• Attachments with political parties
• Consideration set models of electoral choice
• European governance and politics
• Inside the emotional brain of voters
• Psychology of voting
• Quality of political representation
• Referendums at local level
• Referendums at national level
• Revitalized democracy for resilient societies (REDRESS)
• Voting Advice Applications

ATTACHMENTS WITH POLITICAL PARTIES

To understand why people vote as they do in democratic systems, nothing is more relevant than their individual feelings towards the competing political parties. These so-called party attachments can be interpreted through two key psychological conceptual frameworks: social identities and attitudes. Reflecting the former perspective, American scholars commonly refer to this phenomenon as “party identification.” The chapter co-authored with Jacques Thomassen builds on the analyses presented in his influential 1976 paper, extending them with more recent data and a broader set of countries. Our findings show that, in several cases, traditional survey measures of party identification are almost indistinguishable from vote choice itself. This implies that the concept and measures cannot be employed in the European context in the same was as in the American context and then analysing partisanship in terms of attitudes may be more fruitful.

In my dissertation The Sincere Vote (2004), and the related article published in Electoral Studies (2006), I examine the extent to which partisan attitudes—or party evaluations—correlate with voting intentions and actual voting behaviour. I also explore the factors that account for any discrepancies. Two central factors are strategic considerations related to government formation and evaluations of party leaders. These often lead significant numbers of voters to cast their vote for a party other than the one they rate most favourably when asked about their feelings. This is interesting, because models of voting commonly assume that citizens cast their vote simply for the political party that they like best, known as "voting sincerely."

My more recent work focuses on how party attachments are measured. The chapter co-authored with Sabrina Mayer reviews the literature on the conceptualisation and measurement of party attachments in survey research. We assess the strengths and limitations of various approaches and argue that the measurement should align closely with conceptual definitions, which themselves must be sensitive to the context of the research. In an article with Alexa Bankert and Leonie Huddy, we compare multi-item indices of partisan identity to traditional survey questions, using new data from the Netherlands, Sweden, and the United Kingdom. Our main conclusion is that multi-item indices using four or eight items are preferable to traditional measures in election surveys. We also find that in the Netherlands, citizens exhibit relatively weak levels of attachment to political parties.

• Bankert, A., Huddy, L., & Rosema, M. (2017). Measuring partisanship as a social identity in multi-party systems. Political Behavior, 39(1), 103-132. https://doi.org/10.1007/s11109-016-9349-5
• Rosema, M. (2004). The sincere vote: A psychological study of voting. [PhD Thesis]. Leiden University.
• Rosema, M. (2006). Partisanship, candidate evaluations, and prospective voting. Electoral Studies, 25(3), 467-488. https://doi.org/10.1016/j.electstud.2005.06.017
• Rosema, M., & Mayer, S. J. (2020). Measuring party attachments with survey questionnaires. In H. Oscarsson, & S. Holmberg (Eds.), Research handbook of political partisanship (pp. 123-140). Edward Elgar. https://doi.org/10.4337/9781788111997
• Thomassen, J. J. A., & Rosema, M. (2009). Party identification revisited. In J. Bartle, & P. Bellucci (Eds.), Political parties and partisanship: Social identity and individual attitudes (pp. 42-59). (ECPR Studies in European Political Science; No. 57). Routledge.

CONSIDERATION SET MODELS OF ELECTORAL CHOICE

When individuals face decisions involving multiple options, they often proceed in two distinct stages. In the first stage, they reduce the full set of known alternatives to a smaller group of viable options—commonly referred to as a consideration set. In the second stage, they make their final choice from within this subset. In my research with Henrik Oscarsson and Roderik Rekker, we examine how such consideration set models apply to party choice in elections.

Together with Henrik Oscarsson, I co-edited a special issue on this topic in Electoral Studies (2019). In the introductory article, we outline the theoretical foundations of consideration set models and address key methodological challenges in their application to electoral choice. In a separate article in the same journal, Roderik Rekker and I analyse the formation and evolution of consideration sets among voters in the Netherlands and Sweden. Our findings indicate that voters typically shift their electoral preferences within the boundaries of relatively stable consideration sets and ideological groupings of parties.

• Oscarsson, H., & Rosema, M. (Eds.) (2019). Symposium: Consideration sets, Special issue of Electoral Studies, Volume 57.
• Oscarsson, H., & Rosema, M. (2019). Consideration set models of electoral choice: Theory, method, and application. Electoral Studies, 57, 256-262. https://doi.org/10.1016/j.electstud.2018.08.003
• Rekker, R., & Rosema, M. (2019). How (often) do voters change their consideration sets? Electoral Studies, 57, 284-293. https://doi.org/10.1016/j.electstud.2018.08.006

EUROPEAN GOVERNANCE AND POLITICS

One topic related to European governance and politics that has been central in part of my research, is the quality of democracy within the European Union. More specifically, a chapter co-authored with Catherine de Vries and an article co-authored with Rory Costello and Jacques Thomassen focused on how well political parties represent their voters in European Parliament elections. It turns out that in general, at least in the period analysed, parties represented their voters rather well in terms of a socio-economic left-right dimension. However, they did so less well in terms of a cultural and European integration dimension. The quality of representation was sometimes limited due to the policy packages on offer for voters and due to the way parties were organized in political groups in the European Parliament. 

Another topic related to EU governance that we addressed, is some stock-taking of research on multi-level governance in the Netherlands. This resulted in a commissioned report and a book chapter, written together with Jacques Thomassen, Nico Groenendijk and Ramses Wessel.

• Costello, R., Thomassen, J., & Rosema, M. (2012). European Parliament elections and political representation: Policy congruence between voters and parties. West European Politics, 35(6), 1226-1248. https://doi.org/10.1080/01402382.2012.713744
• de Vries, C. E., & Walczak, A., Rosema, M. (2010). Dual legitimation in the European Union: The impact of European integration attitudes in national and European elections. PIREDEU Conference, Brussels, Belgium.
• Groenendijk, N., Rosema, M., Thomassen, J. J. A., & Wessel, R. A. (2009). The Netherlands and Norway: Strong in governance research. In B. Kohler-Koch, & F. Larat (Eds.), European multi-level governance: Contrasting images in national research (pp. 85-107). Edward Elgar.
• Rosema, M. (2009). The 2009 European Parliament elections in The Netherlands. European Commission / PIREDEU.
• Rosema, M., & de Vries, C. E. (2011). Assessing the quality of European democracy: Are voters voting correctly? In M. Rosema, B. Denters, & K. Aarts (Eds.), How democracy works: Political representation and policy congruence in modern societies. Essays in honour of Jacques Thomassen (pp. 201-224). Amsterdam University Press/Pallas Publications. https://doi.org/10.1515/9789048513369-012
• Thomassen, J. J. A., & Rosema, M. (2006). Research on EU multilevel governance in the Netherlands: A state of research. (National Report on EU Governance Research). CONNEX.

INSIDE THE EMOTIONAL BRAIN OF VOTERS

For several decades, electoral research has relied predominantly on survey questionnaires as a method. In recent years, a wide variety of technologies has been employed to further our insights into the choices that voters make. This project, which is funded by a Tech4People grant from the University of Twente, adopts brainimaging in combination with surveys to map the emotional responses of voters to information about policy issues and also analyses their impact on political attitudes and behaviour. The project is carried out in collaboration with Elisa van der Plas, Giedo Jansen, Alan Sanfey, Lara Todorova and Karin Heidlmayr.

• How policy-oriented emotions shape political preferences: Combining survey and brain-imaging methodology. Paper presented at the ECPR Joint Sessions of Workshops, Prague, 20-23 May 2025.

PSYCHOLOGY OF VOTING

• Bäck, H., & Rosema, M. (2008). Government formation and strategic voting in multi-party systems: Voting for coalitions in the Netherlands. PSA Annual Conference, Swansea, United Kingdom.
• Mari, S., & Rosema, M. (2009). The emotional underpinning of partisanship and vote choice. ISPP Annual Scientific Meeting, Paris, France.
• Nyhuis, M., Gosselt, J. F., & Rosema, M. (2016). The psychology of electoral mobilization: a subtle priming experiment. Journal of Elections, Public Opinion and Parties, 26(3), 293-311. https://doi.org/10.1080/17457289.2016.1160909
• Oscarsson, H., & Rosema, M. (2019). Consideration set models of electoral choice: Theory, method, and application. Electoral Studies, 57, 256-262. https://doi.org/10.1016/j.electstud.2018.08.003
• Rekker, R., & Rosema, M. (2019). How (often) do voters change their consideration sets? Electoral Studies, 57, 284-293. https://doi.org/10.1016/j.electstud.2018.08.006
• Rosema, M. (2004). The sincere vote: a psychological study of voting. [PhD Thesis]. Leiden University.
• Rosema, M. (2006). Partisanship, candidate evaluations, and prospective voting. Electoral Studies, 25(3), 467-488. https://doi.org/10.1016/j.electstud.2005.06.017
• Rosema, M., & Paskeviciute, A. (2009). Political trust and electoral choice in established and new democracies. ECPR General Conference, Potsdam, Germany.
• Thomassen, J. J. A., & Rosema, M. (2009). Party identification revisited. In J. Bartle, & P. Bellucci (Eds.), Political parties and partisanship: Social identity and individual attitudes (pp. 42-59). (ECPR Studies in European Political Science; No. 57). Routledge.

QUALITY OF POLITICAL REPRESENTATION: policy Congruence between voters and parties

• Costello, R., Thomassen, J., & Rosema, M. (2012). European Parliament elections and political representation: Policy congruence between voters and parties. West European Politics, 35(6), 1226-1248. https://doi.org/10.1080/01402382.2012.713744
• Rosema, M. (2007). Low turnout: Threat to democracy or blessing in disguise? Electoral Studies, 26(3), 612-623. https://doi.org/10.1016/j.electstud.2006.10.007
• Rosema, M., Denters, B., & Aarts, K. (Eds.) (2011). How democracy works: Political representation and policy congruence in modern societies. Amsterdam University Press/Pallas Publications.
• Rosema, M., Aarts, K., & Denters, B. (2011). How democracy works: An introduction. In M. Rosema, B. Denters, & K. Aarts (Eds.), How democracy works: Political representation and policy congruence in modern societies. Essays in honour of Jacques Thomassen (pp. 9-17). Amsterdam University Press/Pallas Publications. https://doi.org/10.1515/9789048513369-002
• Rosema, M., & de Vries, C. E. (2011). Assessing the quality of European democracy: Are voters voting correctly? In M. Rosema, B. Denters, & K. Aarts (Eds.), How democracy works: Political representation and policy congruence in modern societies. Essays in honour of Jacques Thomassen (pp. 201-224). Amsterdam University Press/Pallas Publications. https://doi.org/10.1515/9789048513369-012

REFERENDUMS AT LOCAL level

• Rosema, M. (2005). De stemming in Zwolle. Evaluatie van het referendum over de verordening op de speelautomatenhallen (Reeks Stad en Bestuur; No. 4). Kennis Instituut Stedelijke Samenleving (KISS).
• Rosema, M. (2006). De stemming in Leeuwarden. Evaluatie van het referendum over het project Nieuw Zaailand (Reeks Stad en Bestuur; No. 5). Kennis Instituut Stedelijke Samenleving (KISS).
• Rosema, M. (Ed.) (2009). Het lokale referendum in de praktijk. Special issue of Res Publica, Volume 51, Issue 1.
• Rosema, M. (2009). Het referendum in de consensusdemocratie. Res Publica, 51(1), 5-11. https://doi.org/10.5553/RP/048647002009051001001
• Rosema, M., & Kock, T. (2009). De stemming in Duiven. Evaluatie van het referendum over het project Vitaal Centrum Duiven (Reeks Stad en Bestuur; No. 6). Kennis Instituut Stedelijke Samenleving (KISS).

REFERENDUMS AT national LEVEL

• Kanne, P., Klein Kranenburg, L., & Rosema, M. (2016). Het referendum over de associatie-overeenkomst met Oekraïne. I&O Research.
• Rosema, M. (2016, April 25). Waarom was de opkomst bij het Oekraïnereferendum zo laag? De Hofvijver.
• Rosema, M. (2018, March 27). Een kritische reflectie op de intrekking van de Wet raadgevend referendum. Position paper ter gelegenheid van de expertmeeting van de Eerste Kamer der Staten-Generaal op 27 maart 2018 over het wetsvoorstel tot intrekking van de Wet raadgevend referendum.
• Rosema, M., Kanne, P., & Klein Kranenburg, L. (2016). Het ‘Oekraïne-referendum’ in de ogen van kiezers. In A.W. Heringa (Ed.) Het eerste raadgevend referendum (pp. 101-125). Montesquieu Instituut.

REVITALIZED DEMOCRACY FOR RESILIENT SOCIETIES (REDRESS)

• den Ridder, J., Jacobs, K., Rosema, M., & van Ham, C. (2021). Democratische innovatie in Nederland: het perspectief van burgers. Startnotitie vervaardigd ten behoeve van het project Revitalized Democracy for Resilient Societies (REDRESS). Redress. 

VIRTUAL REALITY AND BEHAVIOURAL CHANGE

The HIB department at the University of Twente has formed a group that focuses on the use of virtual reality (VR), with a particular interest in how this technology can be used for behavioural change. In this context, we wrote a paper that presents a review of the numerous survey questionnaires that have been developed to evaluate the use of VR. We also provide recommendations about which measures to use for some key concepts in this type of research, such as presence, user experience, and motion sickness.

• Bareišytė, L., Slatman, S., Austin, J., Rosema, M., van Sintemaartensdijk, I., Watson, S., & Bode, C. (2024). Questionnaires for evaluating virtual reality: A systematic scoping review. Computers in Human Behavior Reports, 16, Article 100505. https://doi.org/10.1016/j.chbr.2024.100505

VOTING ADVICE APPLICATIONS: mapping parties and guiding voters

• Gemenis, K., & Rosema, M. (2014). Voting Advice Applications and electoral turnout. Electoral Studies, 36, 281-289. https://doi.org/10.1016/j.electstud.2014.06.010
• Louwerse, T., & Rosema, M. (2014). The design effects of voting advice applications: Comparing methods of calculating matches. Acta Politica, 49(3), 286-312. https://doi.org/10.1057/ap.2013.30
• Rosema, M. (2017). De blinde vlek van kieswijzers. B en M: tijdschrift voor beleid, politiek en maatschappij, 44(1), 95-97. https://doi.org/10.5553/BenM/138900692017044001016
• Rosema, M., Anderson, J., & Walgrave, S. (Eds.) (2014). Symposium: The design, purpose, and effects of voting advice applications. Special issue of Electoral Studies, Volume 36.
• Rosema, M., Anderson, J., & Walgrave, S. (2014). The design, purpose, and effects of voting advice applications. Electoral Studies, 36, 240-243. https://doi.org/10.1016/j.electstud.2014.04.003
• Rosema, M., & Louwerse, T. (2016). Response scales in Voting Advice Applications: Do different designs produce different outcomes? Policy & Internet, 8(4), 431-456. https://doi.org/10.1002/poi3.139
• Ruusuvirta, O., & Rosema, M. (2009). Do online vote selectors influence electoral participation and the direction of the vote? ECPR General Conference, Potsdam, Germany.

MEDIA

Martin Rosema has frequently been consulted by the media for his expertise on elections and referendums. Below is a selection of his media contributions, comprising interviews, contributions to articles and other media items, and opinion articles. They are mostly in Dutch.

INTERVIEWS

• Twente verrast op het oog, maar stemt als vanouds. Tubantia, 31 oktober 2025. [link]
• Kort interview over strategisch stemmen. Met het oog op morgen, NPO Radio 1, 21 november 2023. [link] (vanaf 20 min.)
• Niet alle stemhulpen even betrouwbaar, zo kies je de juiste. Hart van Nederland website, 20 november 2023. [link]
• Veel zwevende kiezers zoeken hulp van online stemwijzers. EenVandaag, NPO1, 11 november 2023. [link]
• Wie zit er achter de stemhulpen in Nederland? Argos, NPO Radio 1, 11 november 2023. [link]
• Interview over kieswijzers. Ochtendshow, Radio 538, 27 oktober 2023. [link]
• 'Denkend aan Holland' met Martin Rosema: hoe kies je een partij die bij je past? Spraakmakers, NPO Radio 1, 25 oktober 2023. [link] (vanaf 4 min.)
• Stuurloos zonder StemWijzer. EditieNL, RTL4, 25 oktober 2023.
• Wat dacht de Twentse kiezer in het stemhokje? Tubantia, 20 maart 2021. [link]
• Kwaliteit van kleine kieswijzers verschilt sterk. Nederlands Dagblad, 7 maart 2021. [link]
• Gesprek over het Oekraïne-referendum (met Gerdi Verbeet, Arend-Jan Boekestijn en Martin Rosema). Buitenhof, NPO1, 10 april 2016.

Interviews in U-Today

• Verkiezingen op komst: waarom vinden weinig UT’ers hun weg naar de Tweede Kamer? U-Today, 31 oktober 2023. [link]
• Bestuursminor terug van weggeweest. U-Today, 11 november 2021. [link]
• Komen burgerfora en referenda de democratie ten goede? U-Today, 10 november 2021. [link]
• UT-politicoloog Rosema over de verkiezingen. U-Today, 17 maart 2017. [link]
• Weinig aandacht voor vetorecht Nederland. UT Nieuws, 6 april 2016. [link]
• Minder overlast van azc dan gedacht. UT Nieuws, 21 december 2015. [link]
• Rekenmethode bepaalt stemadvies stemhulp. UT Nieuws, 14 mei 2014. [link]

CONTRIBUTIONS TO news ARTICLES AND ITEMS ON TV AND RADIO

• Een referendum over een azc: dit is wat het kan opleveren. RTL Nieuws, website videorapportage, 31 oktober 2025. [link]
• Regionaal stemmen heeft echt zin. Tubantia (front page main article), 29 oktober 2025. [link]
• In 'Omtzigt-stad' Hengelo willen kiezers straks Kamerleden in wie ze zich herkennen: 'Geen ruzie, maar aan het werk'. EenVandaag, NPO1, 29 oktober 2025. [link]
• Waarom u stemt wat u stemt, Volkskrant, 25 oktober 2025. [link]
• AI-bots geven een 'vertekend stemadvies', wat kun je er wel mee? website RTL Nieuws/RTL Z, 22 oktober 2025. [link]
• Van CDA naar NSC en nu (deels) weer terug: dit is waar de 'Omtzigt-kiezer' naartoe gaat. EenVandaag, NPO1, 20 oktober 2025. [link]
• ChatGPT, Grok en Gemini geven desgevraagd stemadvies, BNR, 26 juni 2025. [link]
• De genegeerde burger. De Groene Amsterdammer, nr. 48, 28 november 2023. [link]
• Verval bij links-progressieve partijen: 'Verkiezingsthema's geclaimd door PVV'. NOS Nieuws website, 25 november 2023. [link]
• Dutch election: Anti-Islam populist Geert Wilders wins dramatic victory. BBC News website, 23 november 2023. [link]
• Dutch election: Voters choose new leaders in neck-and-neck race. BBC News website, 22 november 2023. [link]
• Stemadvies van chatbot: 'Mooie toepassing, maar nog onbetrouwbaar'. NU.nl, 19 november 2023. [link]
• Deze is voor alle zwevende kiezers. NOS op 3 explainer video (YouTube), 18 november 2023.

• Partij Omtzigt kanshebber met minste politiek ervaren kandidaten. Leidsch Dagblad, 17 november 2023. [link]
• Strategisch stemmen: zo kiest u de coalitie van uw voorkeur. EW Magazine, 15 november 2023. [link]
• Marco maakte voor 100.000 euro een eigen ‘echte’ kieswijzer: ‘Eigenlijk ontmaskeren we de partijen’, AD, 15 november 2023. [link]
• Oneens met uitkomst stemhulp? Dan slaan we advies in de wind. RTL Nieuws website, 7 november 2023. [link]
• Item over kieswijzers. Hart van Nederland, SBS6, 25 oktober 2023.
• Worden we wijzer van de Stemwijzer? Telegraaf, 25 oktober 2023. [link]
• Stemhulpen beïnvloeden de verkiezingen, hoe kies je welke je gebruikt? NRC Handelsblad, 13 maart 2023. [link]
• Van de Politieke Sekswijzer tot de Boerderij Kieswijzer, tientallen stemhulpen maken de zwevende kiezer wegwijs, Trouw, 13 maart 2021. [link]
• Kieswijzers hebben grote invloed op zwevende kiezer. NRC Handelsblad, 11 maart 2021. [link]
• Rumoer rond de peilingen: hoeveel invloed hebben ze nu echt op uw stemgedrag? Volkskrant, 5 maart 2021. [link]
• Wetenschapper uit Enschede waarschuwt Eerste Kamer over afschaffen referendum. AD, 27 maart 2018. [link]
• Experts zijn eensgezind: afschaffingswet referendum is ‘niet fraai’. Trouw, 27 maart 2018. [link]
• Juristen kritisch over intrekkingswet: kabinet moet referendum niet afschaffen maar verbeteren. Volkskrant, 27 maart 2018. [link]
• Sheila zag hoe zeven deskundigen de regering met de grond gelijk maakten: 'Spektakel'. Volkskrant, 27 maart 2018. [link]
• Hoe zou Nederland eruit zien met bindend referendum? Volkskrant, 8 april 2016. [link]
• Waarom het referendum vlees noch vis is, Volkskrant, 6 april 2016. [link]

OPINION ARTICLES

• Motivering voor afschaffen referendum rammelt aan alle kanten. Weblog Stuk Rood Vlees, 5 april 2018. [link]
• Eeuw algemeen kiesrecht is wél een feestje waard. Twentsche Courant Tubantia, 8 december 2017. [link]
• Ja-kamp Oekraïne-referendum heeft beter verhaal nodig (met Peter Kanne). Joop – opinieplatform van omroepvereniging VARA [www.joop.nl], 2 februari 2016. [link]
• Waarom was de opkomst bij het Oekraïne-referendum zo laag? De Hofvijver: Nieuwsbrief van het Montesquieu Instituut, 25 april 2016.
• Referendumsmaken: populisme en elitisme. Democratic Challenge. Uitgave van Ministerie van Binnenlandse Zaken en Koninkrijksrelaties/Vereniging van Nederlandse Gemeenten, juni 2016. [link]
• Politieke betekenis van aanslag op Charlie Hebdo is groot. UT Nieuws online, 13 januari 2015. [link]
• Ontwerp kieshulp maakt enorm uit voor advies (met Tom Louwerse). Weblog Stuk Rood Vlees [www.stukroodvlees.nl], 13 mei 2014.
• Wat is dit anders dan plagiaat? NRC Handelsblad, 19 februari 2013. [link]
• Tweede Kamer moet voorzitter anders gaan kiezen. Joop – opinieplatform van omroepvereniging VARA [www.joop.nl], 27 september 2012. [link]
• Vaar niet blind op kieswijzers, UT Nieuws, september 2012.
• Dat advies is blind. NRC Handelsblad, 18 augustus 2012. [link]
• Meeste kieswijzers deugen niet. Volkskrant (online), 3 juni 2009. [link]
• Opkomst bij provinciale verkiezingen was te hoog. IPO Magazine, 2007.
• Stem nog wijzer. Janus: uitgave ter gelegenheid van het dertigjarig bestaan van Studievereniging Sirius, 2007.  [link]
• Vragen waar de kiezer niet verder mee komt. Trouw, 21 november 2006. [link]
• Strategisch stemmen loont wel degelijk. Volkskrant, 29 januari 2001. [link]
• Politici niet schuldig, wel verantwoordelijk. Volkskrant, 22 juli 1999. [link]

FROM THE OLD DAYS

Item about opinion polls in Netwerk, 2010 (in Dutch, with Jelke Bethlehem and Martin Rosema)

Organisations