Effect of design features on engagement in health and fitness apps

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Rule #9: Do not use rule violations by others to your advantage.

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Issue found:
The link to the study appears to be broken.

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Issue found:
The study has already been closed.

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Issue found:
There was no Survey Code at the end of the study.

Note: In some cases, the Survey Code is shown already on the first page of a questionnaire or in the "pop-up" menu of the study in the Survey Ranking.

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