Integrity and confidence in your ClearBrain Scores is important to us. That is why we track the history of every prediction, and monitor how your predicted scores perform over time.
The week after your predictions have been run, you will be able to see the performance of your historical scores in the "History" section of your prediction. Specifically, you'll be able to follow whether users with higher ClearBrain scores actually had a higher likelihood of performing the predicted goal.
The analysis is presented as a bar chart. The x-axis groups users by their ClearBrain score from the prior calendar week, and the y-axis indicates the % of those users that actually performed the goal. You should see that users in higher propensity scores have higher conversion rates.