Integrating Large-Scale Online Surveys and Aggregate Data at the Constituency Level: The Estimation of Voter Transitions in the 2015 British General Elections

What have been the underlying voter shifts that led to the victory of the Con- servative Party in the 2015 British general election – against all predictions by pollsters? Analyses of voter transitions based on (online) surveys and recall ques- tions are plagued by sampling and response biases, whe...

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Main Authors: Paul W. Thurner, Ingrid Mauerer, Maxim Bort, André Klima, Helmut Küchenhoff
Format: Article
Language:English
Published: European Survey Research Association 2020-09-01
Series:Survey Research Methods
Subjects:
Online Access:https://ojs.ub.uni-konstanz.de/srm/article/view/7628
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author Paul W. Thurner
Ingrid Mauerer
Maxim Bort
André Klima
Helmut Küchenhoff
author_facet Paul W. Thurner
Ingrid Mauerer
Maxim Bort
André Klima
Helmut Küchenhoff
author_sort Paul W. Thurner
collection DOAJ
description What have been the underlying voter shifts that led to the victory of the Con- servative Party in the 2015 British general election – against all predictions by pollsters? Analyses of voter transitions based on (online) surveys and recall ques- tions are plagued by sampling and response biases, whereas aggregate data analyses are suspect of the well-known ecological fallacy. We propose a systematic statistical combination of individual and aggregate data at the constituency level to identify regional electoral shifts between the 2010 to 2015 British general elections, with a particular focus on England. Large-scale individual data collected by the British Election Study Internet Panel (BESIP) allow us to locate more than 28,000 respon- dents in their constituencies. We estimate transitions based on a recently developed Bayesian Hierarchical Hybrid Multinomial Dirichlet (HHMD) model. We discover a clear deviance from pure RxC ecological inference and from pure online panel- based estimations of transition matrices. Convergence diagnostics corroborate the superiority of the hybrid models.
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spelling doaj.art-501d924f308d461f8eb90828bfb6238e2022-12-22T02:46:11ZengEuropean Survey Research AssociationSurvey Research Methods1864-33612020-09-0114510.18148/srm/2020.v14i5.7628Integrating Large-Scale Online Surveys and Aggregate Data at the Constituency Level: The Estimation of Voter Transitions in the 2015 British General ElectionsPaul W. Thurner0Ingrid Mauerer1Maxim Bort2André Klima3Helmut Küchenhoff4Ludwig-Maximilians-University Munich (LMU)Department of Political Science, LMU MunichStatistical Consulting Unit StaBLab, Department of Statistics, LMU MunichStatistical Consulting Unit StaBLab, Department of Statistics, LMU MunichStatistical Consulting Unit StaBLab, Department of Statistics, LMU Munich What have been the underlying voter shifts that led to the victory of the Con- servative Party in the 2015 British general election – against all predictions by pollsters? Analyses of voter transitions based on (online) surveys and recall ques- tions are plagued by sampling and response biases, whereas aggregate data analyses are suspect of the well-known ecological fallacy. We propose a systematic statistical combination of individual and aggregate data at the constituency level to identify regional electoral shifts between the 2010 to 2015 British general elections, with a particular focus on England. Large-scale individual data collected by the British Election Study Internet Panel (BESIP) allow us to locate more than 28,000 respon- dents in their constituencies. We estimate transitions based on a recently developed Bayesian Hierarchical Hybrid Multinomial Dirichlet (HHMD) model. We discover a clear deviance from pure RxC ecological inference and from pure online panel- based estimations of transition matrices. Convergence diagnostics corroborate the superiority of the hybrid models. https://ojs.ub.uni-konstanz.de/srm/article/view/7628voter transitionsecological inferenceBritish election study internet panelhybrid models
spellingShingle Paul W. Thurner
Ingrid Mauerer
Maxim Bort
André Klima
Helmut Küchenhoff
Integrating Large-Scale Online Surveys and Aggregate Data at the Constituency Level: The Estimation of Voter Transitions in the 2015 British General Elections
Survey Research Methods
voter transitions
ecological inference
British election study internet panel
hybrid models
title Integrating Large-Scale Online Surveys and Aggregate Data at the Constituency Level: The Estimation of Voter Transitions in the 2015 British General Elections
title_full Integrating Large-Scale Online Surveys and Aggregate Data at the Constituency Level: The Estimation of Voter Transitions in the 2015 British General Elections
title_fullStr Integrating Large-Scale Online Surveys and Aggregate Data at the Constituency Level: The Estimation of Voter Transitions in the 2015 British General Elections
title_full_unstemmed Integrating Large-Scale Online Surveys and Aggregate Data at the Constituency Level: The Estimation of Voter Transitions in the 2015 British General Elections
title_short Integrating Large-Scale Online Surveys and Aggregate Data at the Constituency Level: The Estimation of Voter Transitions in the 2015 British General Elections
title_sort integrating large scale online surveys and aggregate data at the constituency level the estimation of voter transitions in the 2015 british general elections
topic voter transitions
ecological inference
British election study internet panel
hybrid models
url https://ojs.ub.uni-konstanz.de/srm/article/view/7628
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