| Mahrt, Merja | Heinrich-Heine-Universität Düsseldorf, Germany | Why not to use popularity scores from platforms. The hidden biases of YouTube data Presenter |
| Manewitsch, Vladimir | NIM, Germany | Revealing consumer-brand-interactions from social media pictures - a case study from the fast-moving consumer goods industry |
| Markewitz, Katja | Hochschule Ruhr West, Germany | Style for Success? A Study on the Impact of Avatars’ Styling on Perceived Competence and Warmth. Presenter |
| Martin, Sebastian | University of Applied Sciences, Upper Austria | A selection bias of Facebook respondents, which need to be taken into account |
| Martinsson, Johan | University of Gothenburg, Sweden | When Don’t Know is not an Option: The Motivations behind Choosing the Midpoint in Five-Point Likert Type Scales Presenter |
| Maslovskaya, Olga | University of Southampton, United Kingdom | Data quality in mixed-mode mixed-device general population UK social survey: Evidence from the Understanding Society Wave 8 Presenter
Dispelling Smartphone Data Collection Myths: Uptake and Data Quality in the UK Office for National Statistics (ONS) Large Random Probability Mixed-Device Online Survey Experiments Presenter |
| Mayr, Susanne | Universität Passau, Germany | Linguistic Properties of Echo Chambers and Hate Groups on Reddit |
| McGee, Alice | Kantar Public, United Kingdom | Do we know what to do with “Don’t Know”? |
| Mede, Niels Göran | Universität Zürich | Fake it till they take it? Pseudo user effects and pseudo user literacy Presenter |
| Meier, Harald | Social Media Research Foundation, USA/Germany/Albania | Insights from mapping the Twitter network of the German Bundestag Presenter |
| Meitinger, Katharina | Utrecht University, the Netherlands | List-style open-ended questions in Web surveys: A comparison of three visual layouts
Taking Respondents Seriously: Feedback in Mixed-Device Studies Presenter |
| Messingschlager, Tanja | University of Würzburg, Germany | Fake News: On the Influence of Warnings and Personality Presenter |
| Metzler, Anke | Darmstadt University of Technology, Germany | Coverage Error in Smartphone Surveys Across European Countries |
| Meyer, Levi | Rheinische Fachhochschule Köln, Germany | Believing in social proof or personal experience? - Contrasting and comparing the effect of different kinds of eWOM in online shops |
| Mezzanzanica, Marta | NatCen Social Research, United Kingdom | The Presentation of Don't Know Answer Options in Web Surveys: an Experiment with the NatCen Panel |
| Michelle, Schwing | Universität Würzburg, Germany | Fact or Fake? A mediapsychological perspective on children judging credibility of news |
| Mikucka, Malgorzata | MZES, Mannheim University (Germany), | PC versus mobile survey modes: are people's life evaluations comparable? |
| Milic, Thomas | Center for Democracy Studies Aarau (ZDA), Switzerland;
Department of Political Science, University of Zurich, Switzerland | The ideological dimension of vote choice response latency |
| Minderop, Isabella | GESIS Leibniz Institute for the Social Sciences, Germany | Does the layout make a difference? An experiment on effects of online survey layout and device on data quality |
| Mohseni, M. Rohangis | TU Ilmenau, Germany | Methods and Tools for the Automatic Sampling and Analysis of YouTube Comments Presenter |
| Morini, Matteo | Institute for Web Science and Technologies, Universität Koblenz-Landau | Political Fandoms as Networks on Twitter: Language-Blind Analysis of Polarized Communication |
| Mulder, Joris | CentERdata - Tilburg University | What Really Makes You Move? Identifying Relationships between Physical Activity and Health through Applying Machine Learning Techniques on High Frequency Accelerometer and Survey Data. |
| Munzert, Simon | Princeteon University | How Nudges Can (De)polarize America: A Field Experiment on the Effects of Online Media Exposure Presenter |
| Mütze, Janina | Civey GmbH, Germany | MRP und Variablenselektion in einer Echtzeit-Anwendung - Eine Fallstudie Presenter |
