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. 2013 Feb 8;15(2):e22. doi: 10.2196/jmir.2227

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©Jesse Dallery, Rachel N. Cassidy, Bethany R. Raiff. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 08.02.2013.

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.

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Example of a reversal design showing experimental control and replications within and between subjects (each panel represents a different participant, each of whom experienced two baseline and two treatment conditions).