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Effects of estimated completion time and unconditional gift certificates on questionnaire response

Authors

  • Marleen M H J van Gelder Department for Health Evidence, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands Radboud REshape Innovation Center, Radboud University Medical Center, Nijmegen, The Netherlands PubMed articlesGoogle scholar articles
  • Pauline M Geuijen Department for Health Evidence, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands PubMed articlesGoogle scholar articles
  • Jeanne H M de Vries Division of Human Nutrition, Wageningen University, Wageningen, The Netherlands PubMed articlesGoogle scholar articles
  • Nel Roeleveld Department for Health Evidence, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands Department of Paediatrics, Radboudumc Amalia Children's Hospital, Radboud University Medical Center, Nijmegen, The Netherlands PubMed articlesGoogle scholar articles
  1. Correspondence to Dr Marleen MHJ van Gelder, Department for Health Evidence (HP 133), Radboud University Medical Center, P.O. Box 9101, Nijmegen 6500 HB, The Netherlands; Marleen.vanGelder{at}radboudumc.nl
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Citation

van Gelder MMHJ, Geuijen PM, de Vries JHM, et al
Effects of estimated completion time and unconditional gift certificates on questionnaire response
J Epidemiol Community Health 2017;71:520.

Publication history

  • Received October 21, 2016
  • Accepted October 26, 2016
  • First published November 11, 2016.
Online issue publication 
April 24, 2017

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