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. 2019 Feb 13;7(1):e11444. doi: 10.2196/11444

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©Christoph Höchsmann, Denis Infanger, Christopher Klenk, Karsten Königstein, Steffen P Walz, Arno Schmidt-Trucksäss. Originally published in JMIR Serious Games (http://games.jmir.org), 13.02.2019.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in JMIR Serious Games, is properly cited. The complete bibliographic information, a link to the original publication on http://games.jmir.org, as well as this copyright and license information must be included.

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Illustration of the group-dependent change in total Intrinsic Motivation Inventory score and for the subscales "interest/enjoyment", "perceived competence", "perceived choice", and "value/usefulness". Pre: value at baseline; Post: value after the 24-week intervention period; n.s., not significant. *P<.05, **P<.001.