Tobias Gummer
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Explaining interview duration in web surveys: A multilevel approach
T Gummer, J Roßmann
Social Science Computer Review 33 (2), 217-234, 2015
‘Show me the money and the party!’–variation in Facebook and Twitter adoption by politicians
S Quinlan, T Gummer, J Roßmann, C Wolf
Information, communication & society 21 (8), 1031-1049, 2018
Social media monitoring of the campaigns for the 2013 german bundestag elections on facebook and twitter
L Kaczmirek, P Mayr, R Vatrapu, A Bleier, M Blumenberg, T Gummer, ...
arXiv preprint arXiv:1312.4476, 2013
Using instructed response items as attention checks in web surveys: Properties and implementation
T Gummer, J Roßmann, H Silber
Sociological Methods & Research, 0049124118769083, 2018
Using paradata to predict and correct for panel attrition
J Roßmann, T Gummer
Social Science Computer Review 34 (3), 312-332, 2016
Mitigating satisficing in cognitively demanding grid questions: evidence from two web-based experiments
J Roßmann, T Gummer, H Silber
Journal of Survey Statistics and Methodology 6 (3), 376-400, 2018
Assessing trends and decomposing change in nonresponse bias: the case of bias in cohort distributions
T Gummer
Sociological Methods & Research 48 (1), 92-115, 2019
Prävention, Korrektur oder beides?
JE Blumenstiel, T Gummer
Nonresponse Bias, 13-44, 2015
Does increasing mobile device coverage reduce heterogeneity in completing web surveys on smartphones?
T Gummer, F Quoß, J Roßmann
Social Science Computer Review 37 (3), 371-384, 2019
Gewichtung in der German Longitudinal Election Study 2009
MS Blumenberg, T Gummer
DEU 2013, 46, 2013
Multiple Panels in der empirischen Sozialforschung: Evaluation eines Forschungsdesigns mit Beispielen aus der Wahlsoziologie
T Gummer
Springer-Verlag, 2015
Langfrist-Panels der German Longitudinal Election Study (GLES): Konzeption, Durchführung, Aufbereitung und Archivierung
JE Blumenstiel, T Gummer
DEU 2012, 38, 2012
Working with user agent strings in Stata: The PARSEUAS command
J Roßmann, T Gummer, L Kaczmirek
Journal of Statistical Software 92 (1), 1-16, 2020
Learning effects in coders and their implications for managing content analyses
T Gummer, MS Blumenberg, J Roßmann
International Journal of Social Research Methodology 22 (2), 139-152, 2019
PARSEUAS: Stata module to extract detailed information from user agent strings
J Roßmann, T Gummer
Boston College Department of Economics, 2016
Good questions, bad questions? A post-survey evaluation strategy based on item nonresponse
T Gummer, J Roßmann
Survey Methods: Insights from the Field, 10, 2013
Long-Term Panels of the German Longitudinal Election Study (GLES): concept and implementation
JE Blumenstiel, T Gummer
DEU 2013, 39, 2013
When near means related: evidence from three web survey experiments on inter-item correlations in grid questions
H Silber, J Roßmann, T Gummer
International Journal of Social Research Methodology 21 (3), 275-288, 2018
Experimental Evidence on Reducing Nonresponse Bias through Case Prioritization: The Allocation of Interviewers
T Gummer, JE Blumenstiel
Field Methods 30 (2), 124-139, 2018
Langfrist-Panels der German Longitudinal Election Study (GLES): Methodik und Durchführung der Erhebungen im Jahr 2012 und zur Bundestagswahl 2013
J Blumenstiel, T Gummer
GESIS, 2014
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