Control Ratio
Trophy has a built-in capability to automatically A/B test gamification features using a control ratio. Found on the integration page of the Trophy dashboard, the control ratio adjusts the percentage of users that are assigned to the ‘control’ group versus the ‘experimental’ group.control attribute as true or false in most APIs that relate to user data allowing you to conditionally show gamification features to users who are in the experimental group.
If you plan to measure the overall impact of gamification features, make sure to only show those features to users with control set to false.
The control attribute
Trophy also doesn’t send any Emails or Push
Notifications to users who are in the control
group.

Retention & Engagement
Both retention and user engagement are important metrics to use when measuring the impact of changes on the user experience. The following sections outline what each means and how it relates to features you build with Trophy.Retention
Learn how to measure the impact of gamification on retention
Engagement
Learn how to measure the impact of gamification on user engagement