Reward interstitials are connected to the users profile stats and are shown across all Suggested edit tasks (article descriptions, image captions, image tags).

We want to A/B test, we want to know if motivational elements increase session length, do they increase edits per session?

04/10/2020:
Shay is outlining an A/B/C testing schema and will be working with @Dbrant who will implement a mechanism to compare group users by exposure to features.

Reward Events:
Contributions:
Starting at the 5th contribution, shown after every 50th additional contribution, (5, 55, 105 and so forth)
Edit streak:
Shown when on an edit streak on every 5th day (5, 10, 15 and so forth)
The edit streak count table we currently have wikimedia_editor_tasks_edit_streak is a very rudimentary count of users and days of streaks, we will need a better way to track these users or are we using another mechanism to check for edit streaks?
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Shown every 14 days when revert rate is “Perfect“, “Excellent“, “Very good“ or “Good“, when user has actively contributed in the past 14 days (at least one edit)
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Shown once a month when user has actively contributed in the past 30 days (at least one edit)