Detail

Research Fellow (Data and Methods Unit)

alexander.wenz@mzes.uni-mannheim.de

Phone:

+49-621-181-2019

Postal Address

University of Mannheim, MZES

68131 Mannheim

Visiting Address

University of Mannheim, MZES

A5, 6

Room: A 244

68159 Mannheim

Projects collapse

Social Inequality

Social Data and Methods

2112

Understanding, Measuring, and Alleviating Inequalities in Digital Technology Use

Social Data and Methods

2301

Acceptance of Smartphone Technologies for Social Science Data Collection

Social Data and Methods

2412

Leveraging Large Language Models for Survey Research

Social Inequality

Social Data and Methods

2413

Spatial Inequalities Beyond the Residential Neighbourhood: A Smartphone-Based Assessment of Activity Spaces, Social Support, and Intergroup Contact

Publications expand

Book Chapter

Juhl, Sebastian , Roni Lehrer , Annelies G. Blom , Alexander Wenz , Tobias Rettig , Ulrich Krieger , Marina Fikel , Carina Cornesse , Elias Naumann , Katja Möhring , Maximiliane Reifenscheid (2022): Preferences for centralized decision-making in times of crisis: the COVID-19 pandemic in Germany. More

Wenz, Alexander (2021): Completing web surveys on mobile devices: Does screen size affect data quality?. More

Journal Article

Antoun, Christopher , Alexander Wenz (9998): Nonparticipation bias in accelerometer-based studies and the use of propensity scores. Social Science Computer Review, pp. (publ. online before print). More

Wenz, Alexander , Florian Keusch , Ruben L. Bach (9998): Measuring smartphone use: Survey versus digital behavioral data. Social Science Computer Review, pp. (publ. online before print). More

Baghal, Tarek , Alexander Wenz , Paulo Serôdio , Shujun Liu , Curtis Jessop , Luke Sloan (2024): Linking survey and LinkedIn data: Understanding usage and consent patterns. Journal of Survey Statistics and Methodology, 12, 5, pp. 1200-1211. More

Jäckle, Annette , Carina Cornesse , Alexander Wenz , Mick P. Couper (2024): Measuring expenditure with a mobile app: Do probability-based and nonprobability panels differ?. Journal of Survey Statistics and Methodology, 12, 5, pp. 1224-1253. More

Wenz, Alexander , Florian Keusch (2023): The second-level smartphone divide: A typology of smartphone use based on frequency of use, skills, and types of activities. Mobile Media & Communication, 11, 3, pp. 459-483. More

(2023): Editorial: Recent Advances in Survey Methods for Collecting Food Data. Survey Methods: Insights from the Field, 1, 3 (Special Issue on Food Acquisition Research and Methods), pp. 1-8. More

Wenz, Alexander , Florian Keusch (2023): Increasing the acceptance of smartphone-based data collection. Public Opinion Quarterly, 87, 2, pp. 357-388. More

Wenz, Alexander , Annette Jäckle , Jonathan Burton , Mick P. Couper (2022): The effects of personalized feedback on participation and reporting in mobile app data collection. Social Science Computer Review, 40, 1, pp. 165–178. More

Cornesse, Carina , Ulrich Krieger , Marie-Lou Sohnius , Marina Fikel , Sabine Friedel , Tobias Rettig , Alexander Wenz , Sebastian Juhl , Roni Lehrer , Katja Möhring , Elias Naumann , Maximiliane Reifenscheid , Annelies G. Blom (2022): From German Internet Panel to Mannheim Corona Study: Adaptable probability-based online panel infrastructures during the pandemic. Journal of the Royal Statistical Society: Series A, Statistics in Society, 185, 3, pp. 773-797. More

Keusch, Florian , Alexander Wenz , Frederick G. Conrad (2022): Do you have your smartphone with you? Behavioral barriers for measuring everyday activities with smartphone sensors. Computers in Human Behavior, 127, February 2022, pp. (article no. 107054). More

Jäckle, Annette , Alexander Wenz , Jonathan Burton , Mick P. Couper (2022): Increasing participation in a mobile app study: The effects of a sequential mixed-mode design and in-interview invitation. Journal of Survey Statistics and Methodology, 10, 4, pp. 898–922. More

Möhring, Katja , Elias Naumann , Maximiliane Reifenscheid , Alexander Wenz , Tobias Rettig , Ulrich Krieger , Sabine Friedel , Marina Fikel , Carina Cornesse , Annelies G. Blom (2021): The COVID-19 pandemic and subjective well-being: longitudinal evidence on satisfaction with work and family. European Societies, 23, suppl. 1, pp. S601-S617. More

Mata, Jutta , Alexander Wenz , Tobias Rettig , Maximiliane Reifenscheid , Katja Möhring , Ulrich Krieger , Sabine Friedel , Marina Fikel , Carina Cornesse , Annelies G. Blom , Elias Naumann (2021): Health behaviors and mental health during the COVID-19 pandemic: A longitudinal population-based survey in Germany. Social Science & Medicine, 287, October 2021, pp. (article no. 114333). More

Blom, Annelies G. , Alexander Wenz , Carina Cornesse , Tobias Rettig , Marina Fikel , Sabine Friedel , Katja Möhring , Elias Naumann , Maximiliane Reifenscheid , Ulrich Krieger (2021): Barriers to the Large-Scale Adoption of the COVID-19 Contact-Tracing App in Germany: Survey Study. Journal of Medical Internet Research, 23, 3, pp. (article no. e23362). More

Wenz, Alexander , Tarek Baghal , Alessandra Gaia (2021): Language proficiency among respondents: Implications for data quality in a longitudinal face-to-face survey. Journal of Survey Statistics and Methodology, 9, 1, pp. 73-93. More

Baghal, Tarek , Alexander Wenz , Luke Sloan , Curtis Jessop (2021): Linking Twitter and survey data: Asymmetry in quantity and its impact. EPJ Data Science, 10, pp. (article no. 32). More

Wenz, Alexander (2021): Do distractions during web survey completion affect data quality? Findings from a laboratory experiment. Social Science Computer Review, 39, 1, pp. 148-161. More

Blom, Annelies G. , Carina Cornesse , Joseph W. Sakshaug , Alexander Wenz (2020): Recent advances in probability-based and nonprobability survey research. Journal of Survey Statistics and Methodology, 8, 1, pp. 2-3. More

Cornesse, Carina , Annelies G. Blom , David Dutwin , Jon A. Krosnick , Edith de Leeuw , Stéphane Legleye , Josh Pasek , Darren Pennay , Benjamin Phillips , Joseph W. Sakshaug , Bella Struminskaya , Alexander Wenz (2020): A Review of Conceptual Approaches and Empirical Evidence on Probability and Nonprobability Sample Survey Research. Journal of Survey Statistics and Methodology, 8, 1, pp. 4-36. More

Blom, Annelies G. , Carina Cornesse , Sabine Friedel , Ulrich Krieger , Marina Fikel , Tobias Rettig , Alexander Wenz , Sebastian Juhl , Roni Lehrer , Katja Möhring , Elias Naumann , Maximiliane Reifenscheid (2020): High-Frequency and High-Quality Survey Data Collection: The Mannheim Corona Study. Survey Research Methods, 14, 2, pp. 171-178. More

Bach, Ruben L. , Alexander Wenz (2020): Studying health-related internet and mobile device use using web logs and smartphone records. PLOS ONE, 15, 6, pp. (article no. e0234663). More

Naumann, Elias , Katja Möhring , Maximiliane Reifenscheid , Alexander Wenz , Tobias Rettig , Roni Lehrer , Ulrich Krieger , Sebastian Juhl , Sabine Friedel , Marina Fikel , Carina Cornesse , Annelies G. Blom (2020): COVID‐19 Policies in Germany and their Social, Political, and Psychological Consequences. European Policy Analysis, 6, 2, pp. 191-202. More

Wenz, Alexander , Annette Jäckle , Mick P. Couper (2019): Willingness to use mobile technologies for data collection in a probability household panel. Survey Research Methods, 13, 1, pp. 1-22. More

Allum, Nick , Frederick Conrad , Alexander Wenz (2018): Consequences of mid-stream mode-switching in a panel survey. Survey Research Methods, 12, 1, pp. 43-58. More

Matthews, Peter , Emily Bell , Alexander Wenz (2017): Surveying young people in the smartphone age. Social Research Practice, 5, pp. 2-11. More

Presentation

von der Heyde, Leah , Anna-Carolina Haensch , Alexander Wenz (2024): Vox populi, vox AI? Estimating German public opinion through language models. More

Wenz, Alexander , Anna-Carolina Haensch (2024): Using large language models for evaluating and improving survey questions. More

El-Kayed, Nihad , Alexander Wenz (2024): Everyday mobility in German cities: A smartphone-based assessment of activity spaces and their effect on social inequalities. More

Haensch, Anna-Carolina , Leah von der Heyde , Alexander Wenz (2024): Can large language models predict how people vote? Evidence from Germany. More

Tung, Wai Tak , Alexander Wenz (2024): Mechanisms of participation in smartphone app data collection: A research synthesis. More

von der Heyde, Leah , Anna-Carolina Haensch , Alexander Wenz (2024): Can large language models estimate how people vote? Evidence from Germany. More

Tung, Wai Tak , Alexander Wenz (2024): Mechanisms of Participation in Smartphone App Data Collection: A Systematic Review. More

von der Heyde, Leah , Anna-Carolina Haensch , Alexander Wenz (2024): Can Large Language Models Estimate How People Vote? Evidence from Germany. More

Wenz, Alexander , Florian Keusch (2023): How to increase the acceptance of mobile app and sensor data collection?. More

Wenz, Alexander , Florian Keusch , Ruben L. Bach (2023): Assessing the quality of digital behavioral data for measuring smartphone use. More

von der Heyde, Leah , Alexander Wenz , Anna-Carolina Haensch (2023): Artificial intelligence, unbiased opinions? Assessing GPT’s suitability for estimating public opinion in multi- party systems. More

Wenz, Alexander , Florian Keusch (2022): The second-level smartphone divide: A typology of smartphone usage based on frequency of use, skills, and types of activities. More

Wenz, Alexander , Florian Keusch (2022): How to increase the acceptance of mobile app and sensor data collection?. More

Wenz, Alexander , Florian Keusch (2022): Wie lässt sich die Akzeptanz von Smartphone-Datenerhebungen erhöhen?. More

Keusch, Florian , Alexander Wenz , Frederick G. Conrad (2021): Measuring everyday behavior with smartphone sensors: Potential bias due to device usage. More

Wenz, Alexander , Florian Keusch (2021): The smartphone usage divide: Differences in people's smartphone behavior and implications for mobile data collection. More

Wenz, Alexander , Tarek Baghal , Luke Sloan , Curtis Jessop (2021): Twitter use during the Covid-19 pandemic: Results from two UK studies linking Twitter and survey data. More

Report

Jäckle, Annette , Carina Cornesse , Alexander Wenz , Mick P. Couper (2024): Measuring expenditure with a mobile app: Do probability-based and nonprobability panels differ?. More

von der Heyde, Leah , Anna-Carolina Haensch , Alexander Wenz (2024): Vox Populi, vox AI? Using language models to estimate German public opinion. More

von der Heyde, Leah , Anna-Carolina Haensch , Alexander Wenz (2024): United in diversity? Contextual biases in LLM- based predictions of the 2024 European Parliament Elections. More

Wenz, Alexander , Florian Keusch , Ruben L. Bach (2023): Assessing the quality of digital behavioral data for measuring smartphone use. More

von der Heyde, Leah , Anna-Carolina Haensch , Alexander Wenz (2023): Assessing bias in LLM-generated synthetic datasets: The case of German voter behavior. More

von der Heyde, Leah , Anna-Carolina Haensch , Alexander Wenz (2023): Vox Populi, vox AI? Using language models to estimate German public opinion. More

Wenz, Alexander , Annette Jäckle , Jonathan Burton , Mick P. Couper , Brendan Read (2023): Quality of expenditure data collected with a mobile receipt scanning app in a probability household panel. More

Wenz, Alexander , Florian Keusch (2021): The second-level smartphone divide: A typology of smartphone usage based on frequency of use, skills, and types of activities. More

Möhring, Katja , Elias Naumann , Maximiliane Reifenscheid , Andreas P. Weiland , Annelies G. Blom , Alexander Wenz , Tobias Rettig , Roni Lehrer , Ulrich Krieger , Sebastian Juhl , Sabine Friedel , Marina Fikel , Carina Cornesse (2020): Die Mannheimer Corona-Studie: Schwerpunktbericht zur Nutzung und Akzeptanz von Homeoffice in Deutschland während des Corona-Lockdowns. More

Blom, Annelies G. , Alexander Wenz , Tobias Rettig , Maximiliane Reifenscheid , Elias Naumann , Katja Möhring , Roni Lehrer , Ulrich Krieger , Sebastian Juhl , Sabine Friedel , Marina Fikel , Carina Cornesse , Julian Axenfeld (2020): Die Mannheimer Corona-Studie: Das Leben in Deutschland im Ausnahmezustand; Bericht zur Lage vom 20. März bis 31. März 2020. More

Möhring, Katja , Friederich Heinemann , Elias Naumann , Maximiliane Reifenscheid , Annelies G. Blom , Alexander Wenz , Tobias Rettig , Roni Lehrer , Ulrich Krieger , Sebastian Juhl , Sabine Friedel , Marina Fikel , Carina Cornesse (2020): Die Mannheimer Corona-Studie: Schwerpunktbericht zum subjektiven Arbeitslosigkeitsrisiko der Beschäftigten in Deutschland. More

Naumann, Elias , Jutta Mata , Maximiliane Reifenscheid , Katja Möhring , Alexander Wenz , Tobias Rettig , Roni Lehrer , Ulrich Krieger , Sebastian Juhl , Sabine Friedel , Marina Fikel , Carina Cornesse , Annelies G. Blom (2020): Die Mannheimer Corona-Studie: Schwerpunktbericht zum Angstempfinden in der Bevölkerung; Untersuchungszeitraum 20. März bis 16. April 2020. More

Lehrer, Roni , Sebastian Juhl , Annelies G. Blom , Alexander Wenz , Tobias Rettig , Maximiliane Reifenscheid , Elias Naumann , Katja Möhring , Ulrich Krieger , Sabine Friedel , Marina Fikel , Carina Cornesse (2020): Die Mannheimer Corona-Studie: Die vier Phasen des Social Distancing in Deutschland. More

Möhring, Katja , Elias Naumann , Maximiliane Reifenscheid , Annelies G. Blom , Alexander Wenz , Tobias Rettig , Roni Lehrer , Ulrich Krieger , Sebastian Juhl , Sabine Friedel , Marina Fikel , Carina Cornesse (2020): Die Mannheimer Corona-Studie: Schwerpunktbericht zur Erwerbstätigkeit in Deutschland 20.3.-15.4.2020. More

Juhl, Sebastian , Roni Lehrer , Annelies G. Blom , Alexander Wenz , Tobias Rettig , Maximiliane Reifenscheid , Elias Naumann , Katja Möhring , Ulrich Krieger , Sabine Friedel , Marina Fikel , Carina Cornesse (2020): Die Mannheimer Corona-Studie: Demokratische Kontrolle in der Corona-Krise. More

Blom, Annelies G. , Alexander Wenz , Tobias Rettig , Maximiliane Reifenscheid , Elias Naumann , Katja Möhring , Roni Lehrer , Ulrich Krieger , Sebastian Juhl , Sabine Friedel , Marina Fikel , Carina Cornesse (2020): Die Mannheimer Corona-Studie: Das Leben in Deutschland im Ausnahmezustand; Bericht zur Lage vom 20. März bis 29. April 2020. More

Blom, Annelies G. , Alexander Wenz , Tobias Rettig , Maximiliane Reifenscheid , Elias Naumann , Katja Möhring , Roni Lehrer , Ulrich Krieger , Sebastian Juhl , Sabine Friedel , Marina Fikel , Carina Cornesse (2020): The Mannheim Corona Study: Life in Germany in a State of Emergency; Report for March 20 to July 09, 2020. More

Blom, Annelies G. , Alexander Wenz , Tobias Rettig , Maximiliane Reifenscheid , Elias Naumann , Katja Möhring , Roni Lehrer , Ulrich Krieger , Sebastian Juhl , Sabine Friedel , Marina Fikel , Carina Cornesse (2020): The Mannheim Corona Study: Life in Germany in a State of Emergency; Report for March 20 to May 28, 2020. More

Blom, Annelies G. , Alexander Wenz , Tobias Rettig , Maximiliane Reifenscheid , Elias Naumann , Katja Möhring , Roni Lehrer , Ulrich Krieger , Sebastian Juhl , Sabine Friedel , Marina Fikel , Carina Cornesse (2020): The Mannheim Corona Study: Life in Germany in a State of Emergency; Report for March 20 to June 30, 2020. More

Burton, Jonathan , Roxanne Connelly , Mick P. Couper , Thomas Crossley , Catherine De Vries , Vernon Gayle , Tim Hanson , Annette Jäckle , Peter Lynn , Nicole Martin , Alice McGee , Christopher Playford , Stephen Pudney , Maria Sobolewska , Luke Taylor , Sandra Walzenbach , Alexander Wenz (2019): Understanding Society Innovation Panel Wave 11: Results from methodological experiments. More

Jäckle, Annette , Alexander Wenz , Jonathan Burton , Mick P. Couper (2019): Increasing participation in a mobile app study: The effects of a sequential mixed-mode design and in-interview invitation. More

Wenz, Alexander , Annette Jäckle , Mick P. Couper (2017): Willingness to use mobile technologies for data collection in a probability household panel. More

Wenz, Alexander (2017): Completing web surveys on mobile devices: Does screen size affect data quality?. More

Kaczmirek, Lars , Philipp Mayr , Ravi Vatrapu , Arnim Bleier , Manuela Blumenberg , Tobias Gummer , Abid Hussain , Katharina Kinder-Kurlanda , Kaveh Manshaei , Mark Thamm , Katrin Weller , Alexander Wenz , Christof Wolf (2014): Social media monitoring of the campaigns for the 2013 German Bundestag elections on Facebook and Twitter. More

Web Articles

Möhring, Katja , Elias Naumann , Maximiliane Reifenscheid , Annelies G. Blom , Alexander Wenz , Tobias Rettig , Roni Lehrer , Sebastian Juhl , Ulrich Krieger , Sabine Friedel , Marina Fikel , Carina Cornesse (2020): Inequality in employment during the Corona lockdown: Evidence from Germany. More

Wenz, Alexander

Projects collapse

Social Inequality

Social Data and Methods

2112

Social Data and Methods

2301

Social Data and Methods

2412

Social Inequality

Social Data and Methods

2413

Publications expand

Book Chapter

Journal Article

Presentation

Report

Web Articles

Visiting address

Postal address

News

The MZES

Projects

Publications

People