Association between Recruitment Methods and Attrition in Internet-Based Studies

• Paolo Bajardi ,

  * E-mail: paolo.bajardi@isi.it

  Affiliations GECO- Computational Epidemiology Group, Department of Veterinary Sciences, University of Torino, Torino, Italy, ISI Foundation, Turin, Italy

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• Daniela Paolotti,

  Affiliation ISI Foundation, Turin, Italy

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• Alessandro Vespignani,

  Affiliations ISI Foundation, Turin, Italy, Laboratory for the Modeling of Biological and Socio-technical Systems Northeastern University, Boston, Massachusetts, United States of America, Institute for Quantitative Social Sciences at Harvard University, Cambridge, Massachusetts, United States of America

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• Ken Eames,

  Affiliation London School of Hygiene and Tropical Medicine, London, United Kingdom

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• Sebastian Funk,

  Affiliation London School of Hygiene and Tropical Medicine, London, United Kingdom

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• W. John Edmunds,

  Affiliation London School of Hygiene and Tropical Medicine, London, United Kingdom

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• Clement Turbelin,

  Affiliations Institut National de la Santé et de la Recherche Médicale, UMR-S 707, Paris, France, Université Pierre et Marie Curie-Paris 6, UMR-S 707, Paris, France

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• Marion Debin,

  Affiliations Institut National de la Santé et de la Recherche Médicale, UMR-S 707, Paris, France, Université Pierre et Marie Curie-Paris 6, UMR-S 707, Paris, France

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• Vittoria Colizza,

  Affiliations ISI Foundation, Turin, Italy, Institut National de la Santé et de la Recherche Médicale, UMR-S 707, Paris, France, Université Pierre et Marie Curie-Paris 6, UMR-S 707, Paris, France

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• Ronald Smallenburg,

  Affiliation Aquisto-Inter BV, Amsterdam, The Netherlands

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• Carl Koppeschaar,

  Affiliation Aquisto-Inter BV, Amsterdam, The Netherlands

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• Ana O. Franco,

  Affiliation Instituto Gulbenkian de Cincia, Oeiras, Portugal

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• Vitor Faustino,

  Affiliation Instituto Gulbenkian de Cincia, Oeiras, Portugal

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• AnnaSara Carnahan,

  Affiliation Public Health Agency of Sweden, Stockholm, Sweden

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• Moa Rehn,

  Affiliation Public Health Agency of Sweden, Stockholm, Sweden

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• Franco Merletti,

  Affiliation Department of Medical Sciences, University of Turin and CPO-Piemonte, Turin, Italy

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• Jeroen Douwes,

  Affiliation Centre for Public Health Research, Massey University, Wellington, New Zealand

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• Ridvan Firestone,

  Affiliation Centre for Public Health Research, Massey University, Wellington, New Zealand

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•  [ ... ],
• Lorenzo Richiardi

  Affiliation Department of Medical Sciences, University of Turin and CPO-Piemonte, Turin, Italy

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