The ESPAD validity study in four countries in 2013


Assessing the validity of the information that has been collected is a relevant issue in any study. After the publication of the 2011 ESPAD report and in the view of preparations for the 2015 survey, a review of the questionnaire used to collect the data was conducted. The results of that exercise are presented in the validity study.

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Table of contents

  • Forward
  • Introduction
  • Goals and data collection
  • Results
  • Discussion
  • Summary and conclusions
  • References
  • Appendices