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. 2015 Oct 29;9:240. doi: 10.1186/s13256-015-0735-0

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© Kaplan et al. 2015

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 2 — Child-reported scores. Each weekly data point is the sum of seven daily ratings, each of which could range from 1 to 4. Hence, a weekly score could range from 7 to 28, with 7 indicating that the child consistently reported feeling happy every day that week