Dr. Georg-Christoph Haas

ongoing Projects

• The effect of password length and complexity on survey and panel recruitment

finished Projects

• High-frequency Online Personal Panel (HOPP) "life and work situations in times of Corona"
• Anschreiben-Framing und Bereitschaft zur Studienteilnahme
• Experiments in Establishment Survey Methodology

• Dokumentation und Codebuch für das Hochfrequente Online Personen Panel "Leben und Erwerbstätigkeit in Zeiten von Corona" (IAB-HOPP, Welle 1–9)

  Volkert, M., Haas, G., Zins, S., Altschul, S., Bellmann, L., Dummert, S., Haensch, A., Hensgen, S., Heusler, A., Ludsteck, J., Müller, B., Müller, D., Osiander, C., Schmidtke, J., Stephan, G., Trahms, A. & Wayment, H. (2024): Dokumentation und Codebuch für das Hochfrequente Online Personen Panel "Leben und Erwerbstätigkeit in Zeiten von Corona" (IAB-HOPP, Welle 1–9). (FDZ-Datenreport 01/2024 (de)), Nürnberg, 39 p. DOI:10.5164/IAB.FDZD.2401.de.v1

• The IAB-SMART-Mobility Module: An Innovative Research Dataset with Mobility Indicators Based on Raw Geodata

  Zimmermann, F., Filser, A., Haas, G. & Bähr, S. (2023): The IAB-SMART-Mobility Module: An Innovative Research Dataset with Mobility Indicators Based on Raw Geodata. In: Jahrbücher für Nationalökonomie und Statistik (published online in August 14, 2023), p. 1-14. DOI:10.1515/jbnst-2023-0051

• Why using Google's reCAPTCHA to protect your survey against bots is a bad idea

  Haas, G. (2023): Why using Google's reCAPTCHA to protect your survey against bots is a bad idea. In: medium.com No. 01.03.2023.

• Effects of prepaid postage stamps and postcards incentives in a web survey experiment

  Haas, G., Volkert, M. & Senghaas, M. (2023): Effects of prepaid postage stamps and postcards incentives in a web survey experiment. In: Field Methods, Vol. 35, No. 3, p. 253-270., accepted on February 24, 2022. DOI:10.1177/1525822X221132401

• Augmenting survey data with digital trace data: Is there a threat to panel retention?

  Trappmann, M., Haas, G., Malich, S., Keusch, F., Bähr, S., Kreuter, F. & Schwarz, S. (2023): Augmenting survey data with digital trace data: Is there a threat to panel retention? In: Journal of survey statistics and methodology, Vol. 11, No. 3, p. 541-552. DOI:10.1093/jssam/smac023

• Dokumentation und Codebuch für das Hochfrequente Online Personen Panel "Leben und Erwerbstätigkeit in Zeiten von Corona" (IAB-HOPP, Welle 1-8)

  Volkert, M., Haas, G., Zins, S., Bellmann, L., Dummert, S., Haensch, A., Hensgen, S., Ludsteck, J., Müller, B., Müller, D., Osiander, C., Schmidtke, J., Stephan, G., Trahms, A. & Wayment, H. (2022): Dokumentation und Codebuch für das Hochfrequente Online Personen Panel "Leben und Erwerbstätigkeit in Zeiten von Corona" (IAB-HOPP, Welle 1-8). (FDZ-Datenreport 04/2022 (de)), Nürnberg, 39 p. DOI:10.5164/IAB.FDZD.2204.de.v1

• Non-participation in smartphone data collection using research apps

  Keusch, F., Bähr, S., Haas, G., Kreuter, F., Trappmann, M. & Eckman, S. (2022): Non-participation in smartphone data collection using research apps. In: Journal of the Royal Statistical Society. Series A, Statistics in Society, Vol. 185, No. Suppl. 2, p. S225-S245. DOI:10.1111/rssa.12827

• Comparing the Response Burden between Paper and Web Modes in Establishment Surveys

  Haas, G., Eckman, S. & Bach, R. (2021): Comparing the Response Burden between Paper and Web Modes in Establishment Surveys. In: Journal of Official Statistics, Vol. 37, No. 4, p. 907-930., accepted on March 01, 2021. DOI:10.2478/jos-2021-0039

• Working from home during the Covid-19 pandemic: usage, barriers, and wishes for the future (Series "Covid-19 crisis: consequences for the labour market")

  Frodermann, C., Grunau, P., Müller, D. & Haas, G. (2021): Working from home during the Covid-19 pandemic: usage, barriers, and wishes for the future (Series "Covid-19 crisis: consequences for the labour market"). In: IAB-Forum No. 30.07.2021, o. Sz.

• Mobile Datenerhebung in einem Panel. Die IAB-SMART-Studie

  Malich, S., Keusch, F., Bähr, S., Haas, G., Kreuter, F. & Trappmann, M. (2021): Mobile Datenerhebung in einem Panel. Die IAB-SMART-Studie. In: T. Wolbring, H. Leitgöb & F. Faulbaum (Hrsg.) (2021): Sozialwissenschaftliche Datenerhebung im digitalen Zeitalter, p. 45-69. DOI:10.1007/978-3-658-34396-5_2

• Dokumentation und Codebuch für das Hochfrequente Online Personen Panel "Leben und Erwerbstätigkeit in Zeiten von Corona" (IAB-HOPP, Welle 1-7)

  Volkert, M., Haas, G., Zins, S., Bellmann, L., Dummert, S., Hensgen, S., Müller, B., Müller, D., Ludsteck, J., Osiander, C., Schmidtke, J., Stephan, G. & Trahms, A. (2021): Dokumentation und Codebuch für das Hochfrequente Online Personen Panel "Leben und Erwerbstätigkeit in Zeiten von Corona" (IAB-HOPP, Welle 1-7). (FDZ-Datenreport 04/2021 (de)), Nürnberg, 38 p. DOI:10.5164/IAB.FDZD.2104.de.v1

• Development of a new COVID-19 panel survey: the IAB high-frequency online personal panel (HOPP)

  Haas, G., Müller, B., Osiander, C., Schmidtke, J., Trahms, A., Volkert, M. & Zins, S. (2021): Development of a new COVID-19 panel survey: the IAB high-frequency online personal panel (HOPP). In: Journal for labour market research, Vol. 55. DOI:10.1186/s12651-021-00295-z

• Homeoffice in der Corona-Krise: Vorbehalte haben abgenommen (Serie "Corona-Krise: Folgen für den Arbeitsmarkt")

  Grunau, P. & Haas, G. (2021): Homeoffice in der Corona-Krise: Vorbehalte haben abgenommen (Serie "Corona-Krise: Folgen für den Arbeitsmarkt"). In: IAB-Forum No. 14.06.2021, o. Sz.

• Working from home in times of the Covid-19 pandemic: Extent, challenges and potentials for the future

  Frodermann, C., Grunau, P., Haas, G. & Müller, D. (2021): Homeoffice in Zeiten von Corona: Nutzung, Hindernisse und Zukunftswünsche. (IAB-Kurzbericht 05/2021), Nürnberg, 11 p.

• Using Geofences to Collect Survey Data: Lessons Learned From the IAB-SMART Study

  Bähr, S., Haas, G., Kreuter, F., Trappmann, M. & Keusch, F. (2020): Using Geofences to Collect Survey Data: Lessons Learned From the IAB-SMART Study. In: Survey Methods: Insights from the Field, p. 1-12. DOI:10.13094/SMIF-2020-00023

• Effects of incentives in smartphone data collection

  Haas, G., Kreuter, F., Keusch, F., Trappmann, M. & Bähr, S. (2020): Effects of incentives in smartphone data collection. In: C.A. Hill, P.P. Biemer, T. Buskirk, L. Japec, A. Kirchner, S. Kolenikov & L.E. Lyberg (Eds.) (2020): Big Data Meets Survey Science, p. 387-414. DOI:10.1002/9781118976357.ch13

• Missing Data and Other Measurement Quality Issues in Mobile Geolocation Sensor Data

  Bähr, S., Haas, G., Keusch, F., Kreuter, F. & Trappmann, M. (2022): Missing Data and Other Measurement Quality Issues in Mobile Geolocation Sensor Data. In: Social science computer review, Vol. 40, No. 1, p. 212-235. DOI:10.1177/0894439320944118

• Impacts of the COVID-19 Pandemic on Labor Market Surveys at the German Institute for Employment Research

  Sakshaug, J., Beste, J., Coban, M., Fendel, T., Haas, G., Hülle, S., Kosyakova, Y., König, C., Kreuter, F., Küfner, B., Müller, B., Osiander, C., Schwanhäuser, S., Stephan, G., Vallizadeh, E., Volkert, M., Wenzig, C., Westermeier, C., Zabel, C. & Zins, S. (2020): Impacts of the COVID-19 Pandemic on Labor Market Surveys at the German Institute for Employment Research. In: Survey research methods, Vol. 14, No. 2, p. 229-233. DOI:10.18148/srm/2020.v14i2.7743

• Coverage error in data collection combining mobile surveys with passive measurement using apps

  Keusch, F., Bähr, S., Haas, G., Kreuter, F. & Trappmann, M. (2023): Coverage error in data collection combining mobile surveys with passive measurement using apps. Data from a German national survey. In: Sociological methods & research, Vol. 52, No. 2, p. 841-878. DOI:10.1177/0049124120914924

• Collecting survey and smartphone sensor data with an app: opportunities and challenges around privacy and informed consent

  Kreuter, F., Haas, G., Keusch, F., Bähr, S. & Trappmann, M. (2020): Collecting survey and smartphone sensor data with an app: opportunities and challenges around privacy and informed consent. In: Social science computer review, Vol. 38, No. 5, p. 533-549. DOI:10.1177/0894439318816389

• IAB-SMART-Studie: Mit dem Smartphone den Arbeitsmarkt erforschen

  Bähr, S., Haas, G., Keusch, F., Kreuter, F. & Trappmann, M. (2018): IAB-SMART-Studie: Mit dem Smartphone den Arbeitsmarkt erforschen. In: IAB-Forum No. 09.01.2018, o. Sz.

• Does granting linkage consent in the beginning of the questionnaire affect data quality?

  Eckman, S. & Haas, G. (2017): Does granting linkage consent in the beginning of the questionnaire affect data quality? In: Journal of Survey Statistics and Methodology, Vol. 5, No. 4, p. 535-551. DOI:10.1093/jssam/smx016