Published on in Vol 21, No 1 (2019): January
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/11683, first published
.
![Use of In-Game Rewards to Motivate Daily Self-Report Compliance: Randomized Controlled Trial Use of In-Game Rewards to Motivate Daily Self-Report Compliance: Randomized Controlled Trial](https://asset.jmir.pub/assets/aa2e33c3cbe97dc4146dcdcecf8a30d4.png 480w,https://asset.jmir.pub/assets/aa2e33c3cbe97dc4146dcdcecf8a30d4.png 960w,https://asset.jmir.pub/assets/aa2e33c3cbe97dc4146dcdcecf8a30d4.png 1920w,https://asset.jmir.pub/assets/aa2e33c3cbe97dc4146dcdcecf8a30d4.png 2500w)
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