JMIR J Med Internet Res Journal of Medical Internet Research 1438-8871 JMIR Publications Inc. Toronto, Canada v17i2e32 25667387 10.2196/jmir.4272 Corrigenda and Addenda Corrigenda and Addenda Correction: The Psychometric Properties of CollaboRATE: A Fast and Frugal Patient-Reported Measure of the Shared Decision-Making Process Eysenbach Gunther Barr Paul James BSc, MSc Public Health, PhD 1
The Dartmouth Center for Health Care Delivery Science Dartmouth College 37 Dewey Field Road Hanover, NH, 03755 United States 1 603 646 2295 1 603 646 1269 paul.j.barr@dartmouth.edu
http://orcid.org/0000-0002-6868-7625 Thompson Rachel BPsySC(Hons), PhD 1 http://orcid.org/0000-0002-1009-0746 Walsh Thom MS, MSPT, PhD 1 http://orcid.org/0000-0002-3956-3105 Grande Stuart W PhD 1 http://orcid.org/0000-0002-6796-7991 Ozanne Elissa M PhD 2 3 http://orcid.org/0000-0001-5352-9459 Elwyn Glyn BA, MB, BCh, MSc, PhD 1 3 http://orcid.org/0000-0002-0917-6286 1 The Dartmouth Center for Health Care Delivery Science Dartmouth College Hanover, NH United States 2 The Institute for Health Policy Studies Department of Surgery University of California, San Francisco San Francisco, CA United States 3 The Dartmouth Institute for Health Policy and Clinical Practice Dartmouth College Hanover, NH United States Corresponding Author: Paul James Barr paul.j.barr@dartmouth.edu 02 2015 06 02 2015 17 2 e32 22 01 2015 23 01 2015 ©Paul James Barr, Rachel Thompson, Thom Walsh, Stuart W Grande, Elissa M Ozanne, Glyn Elwyn. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 06.02.2015. 2015

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The authors of “The Psychometric Properties of CollaboRATE: A Fast and Frugal Patient-Reported Measure of the Shared Decision-Making Process” (http://www.jmir.org/2014/1/e2/) have overlooked an error in the Methods section during the submission process. The sentence “We administered 2 different response scales to examine their psychometric properties separately. CollaboRATE-10 was a 10-point anchored scale, ranging from 0 (no effort at all)” should have been “...ranging from 0 (no effort was made)”. This change is also needed in: “CollaboRATE-5 was a 5-point Likert scale, with responses of 0 (no effort at all),” to read “...with responses of 0 (no effort was made)”. These errors have been corrected in the online version of the paper on the JMIR website on February 6, 2015, together with publishing this correction notice. A correction notice has been sent to PubMed and the correct full-text has been resubmitted to Pubmed Central and other full-text repositories.