Faces in the crowd: Twitter as alternative to protest surveys

• Christopher Barrie ,

  Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Validation, Visualization, Writing – original draft, Writing – review & editing

  * E-mail: christopher.barrie@ed.ac.uk

  ¶☯ All these authors contributed equally to this work and are listed in alphabetical order.

  Affiliation School of Social & Political Science, University of Edinburgh, Scotland, United Kingdom

  https://orcid.org/0000-0002-9156-990X

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• Arun Frey

  Roles Conceptualization, Data curation, Formal analysis, Methodology, Validation, Visualization, Writing – original draft, Writing – review & editing

  ¶☯ All these authors contributed equally to this work and are listed in alphabetical order.

  Affiliations Department of Sociology, University of Oxford, England, United Kingdom, Leverhulme Centre for Demographic Science, Oxford, England, United Kingdom

  https://orcid.org/0000-0002-5044-1432

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