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    Corrigenda and Addenda

    Correction: Improving the Quality of Web Surveys: the Checklist for Reporting Results of Internet E-Surveys (CHERRIES)

    1University Health Network, Centre for Global eHealth Innovation & Techna Institute, Toronto, ON, Canada

    2Institute for Health Policy, Management, and Evaluation, University of Toronto, Toronto, ON, Canada

    3JMIR Publications Inc., Toronto, ON, Canada

    Corresponding Author:

    Gunther Eysenbach, MD, MPH, FACMI

    University Health Network

    Centre for Global eHealth Innovation & Techna Institute

    190 Elizabeth St

    Toronto, ON, M4L3Y7

    Canada

    Phone: 1 416 7866970

    Fax:1 416 340 3595

    Email:



    An error in the CHERRIES statement has been corrected (J Med Internet Res 2004;6[3]:e34). In the original paper, in table 1, under the recommendations on how response rates (view rate, participation rate, and completion rate) should be calculated, denominators and numerators were flipped. The view rate should be the ratio of unique survey visitors divided by unique site visitors. The participation rate should be the ratio of those who agreed to participate divided by unique first survey page visitors. The completion rate is the ratio of the number of people who finished the survey divided by those who agreed to participate. The corrections have been made in the table in both columns. A corrected version has been submitted to PubMed Central, but incorrect versions may exist on other sites.

    Edited by G Eysenbach; This is a non-peer-reviewed article. submitted 04.01.12; accepted 04.01.12; published 04.01.12

    ©Gunther Eysenbach. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 04.01.2012.

    This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in the Journal of Medical Internet Research, is properly cited. The complete bibliographic information, a link to the original publication on http://www.jmir.org/, as well as this copyright and license information must be included.