Konstantin Gavras
A5071393729- Social Media and Politics
- Electoral Systems and Political Participation
- Survey Methodology and Nonresponse
- Populism, Right-Wing Movements
- European Union Policy and Governance
- Social and Intergroup Psychology
- Computational and Text Analysis Methods
- Advanced Causal Inference Techniques
- Political Systems and Governance
- Media Influence and Politics
- Labor Movements and Unions
- Focus Groups and Qualitative Methods
- Social Policy and Reform Studies
- Public Relations and Crisis Communication
- Statistical Methods and Bayesian Inference
- Expert finding and Q&A systems
- Human Mobility and Location-Based Analysis
- European Politics and Security
- Explainable Artificial Intelligence (XAI)
- Hate Speech and Cyberbullying Detection
- Policy Transfer and Learning
- Migration and Labor Dynamics
- demographic modeling and climate adaptation
- Defense, Military, and Policy Studies
- Experimental Behavioral Economics Studies
University of Mannheim
2017-2025
Software (Germany)
2023-2024
Ludwig-Maximilians-Universität München
2021
University of Leeds
2021
University of Bremen
2021
This study explores how researchers’ analytical choices affect the reliability of scientific findings. Most discussions problems in science focus on systematic biases. We broaden lens to emphasize idiosyncrasy conscious and unconscious decisions that researchers make during data analysis. coordinated 161 73 research teams observed their as they used same independently test prominent social hypothesis: greater immigration reduces support for policies among public. In this typical case...
Abstract Democracies without democrats are not sustainable. Yet, recent studies have argued that Western citizens turning their backs on the system of self-governance, thereby eroding societal foundations consolidated democracies. This study contributes to discussions about citizen support democracy by (1) analyzing new cross-national survey data in 18 European countries facilitate assessments temporal and geographical generalizability previous findings, (2) disentangling age, cohort period...
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 original policy preferences and immigration. Reproduction were randomly grouped into a ‘transparent group’ receiving code or ‘opaque only method description no code. The transparent group mostly verified (95.7% same sign p -value cutoff), while the opaque had less success (89.3%). Second-decimal...
Abstract When member states of the European Union face serious international threats, does this serve as a catalyst or obstacle for integration in security and defence domain? To gain purchase on question, paper examines public opinion from common instrument fielded 24 EU (and United Kingdom) with total sample size more than 40,000 respondents. We argue that theoretical accounts perceived threat produce rival hypotheses. Threats might have either uniform differential effects different groups...
A stable democratic society is unthinkable if its citizens oppose the principles of self-governance. Yet, recent studies suggest that consolidated democracies increasingly turn their backs on this system government. Nonetheless, evidence mixed and mainly focuses attitudes toward democracy as a generic concept, while less known about mass support for liberal variant democracy. This study contributes to debate by 1) analyzing citizen core elements in addition direct measures 2) separating age,...
This study explores how researchers’ analytical choices affect the reliability of scientific findings. Most discussions problems in science focus on systematic biases. We broaden lens to include conscious and unconscious decisions that researchers make during data analysis may lead diverging results. coordinated 161 73 research teams observed their as they used same independently test prominent social hypothesis: greater immigration reduces support for policies among public. In this typical...
In surveys, Europeans routinely express high levels of support for a common security and defence policy the European Union. Do these responses reflect real demands or superficial that would crumble if issue was politicised? This article provides new answers to this question. We conducted pre-registered survey experiments with more than 40,000 respondents from 25 countries in which we randomly varied whether received information about potential costs two hypothetical cooperative activities:...
The smartphone increase in web surveys, coupled with technological developments, provides novel opportunities for measuring attitudes. For example, smartphones allow the collection of voice instead text answers by using built-in microphone. This may facilitate answering questions open answer formats resulting richer information and higher data quality. So far, there is only a little body research investigating to questions. In this study, we therefore compare linguistic content...
Abstract The rapid increase in smartphone surveys and technological developments open novel opportunities for collecting survey answers. One of these is the use open-ended questions with requests oral instead written answers, which may facilitate answer process result more in-depth unfiltered information. Whereas it now possible to collect answers on smartphones, we still lack studies impact this format characteristics respondents' In study, compare linguistic content versus political...
Abstract Cognitive interviewing in the form of probing is key for developing methodologically sound survey questions. For a long time, was tied to laboratory setting, making it difficult achieve large sample sizes and creating time-intensive undertaking both researchers participants. Web surveys paved way administering questions over Internet time- cost-efficient manner. In so-called web studies, respondents first answer question then they receive one or more open-ended about their response...
Populist discourse—which tends to benefit anti-systemic parties—has been on the rise in world’s democratic states. Powerful non-democratic states have both means and incentive spread such discourse We clarify incentives illiberal produce communication, delineate how this type of political communication fuses traditional state-to-state propaganda with election interventions. draw case Kremlin-sponsored issue refugees Germany illustrate mechanisms through which operates target countries....
The rise of smartphone surveys, coupled with technological advancements, provide new ways for measuring respondents' political attitudes. use open questions requests voice answers instead text may simplify the answer process and nuanced information. So far, research comparing measurement quality is scarce. We therefore conducted an experiment in a survey (N = 2,402) to investigate criterion validity answers. Voice were collected using JavaScript- PHP-based recording tool that resembles...
Since the end of Cold War, EU aims to advance a relevant and autonomous actor in international politics—especially concerning security defense politics. Scholars interested whether member states actually converge their preferences often analyze strategy papers qualitatively, focusing on selected countries at specific points time. In this article, we propose dictionary approach for analyzing development within over last three decades using quantitative text analysis. We make use 163 papers,...
This paper reports findings from a crowdsourced replication. Eighty-five independent teams attempted computational replication of results reported in an original study policy preferences and immigration by fitting the same statistical models to data. The involved experimental condition. Random assignment put participating into either transparent group that received code, or opaque receiving only methods section, rough description no code. mostly verified numerical with sign p-value threshold...
In an era of mass migration, social scientists, populist parties and movements raise concerns over the future immigration-destination societies. What impacts does this have on policy solidarity? Comparative cross-national research, relying mostly secondary data, has findings in different directions. There is a threat selective model reporting lack replicability. The heterogeneity countries obscures attempts to clearly define data-generating models. P-hacking HARKing lurk among standard...
of the lexical measure Yule's K (see Table 3 on page 882 in original article).More specifically, authors relied so-called "quanteda.textstats"package R (https:/
Abstract Web surveys completed on smartphones open novel ways for measuring respondents’ attitudes, behaviors, and beliefs that are crucial social science research many adjacent fields. In this study, we make use of the built-in microphones to record voice answers in a smartphone survey extract non-verbal cues, such as amplitudes pitches, from collected data. This allows us predict level interest (i.e., disinterest, neutral, high interest) based their answers, which expands opportunities...
Populist discourse - which tends to benefit anti-systemic parties has been on the rise in world’s democratic states. While much of it is home-grown, some produced by external actors. Powerful non-democratic states have both means and incentive spread We clarify incentives illiberal produce such communication, delineate how this type political communication fuses traditional state-to-state propaganda with election interventions democracies. draw case Kremlin- sponsored issue refugees Germany...