The Drill/Test Correlation Report calculates the Pearson correlation coefficient for an entire group. It predicts how well a group is likely to perform on a test based on their overall mastery of the content in the corresponding drills.

Understanding Your Score: What Do the Numbers Mean?

The Pearson correlation coefficient ranges from -1 to 1. You can use this score to quickly access whether your group is on the right track to pass their test:

• Positive Score (closer to 1): Indicates a strong positive relationship between drilling and test results. The higher the positive number, the more likely the group is to pass their tests. This means your group's effort in drills is translating directly into test success.
• Negative Score (closer to -1): Indicates an inverse relationship. The lower or more negative the number, the higher the chance the group could fail their tests. This usually signals that group members may be struggling to apply what they learned in drills to the actual test context.

Need a deeper mathematical overview? Learn more about how the Pearson correlation coefficient works.

Prerequisites

To generate a valid report, the group must contain both the test and all corresponding drills that the test is based on.

How to Request and Download the Report

1. Go to the Manage → Groups page in your navigation menu.
2. Select and open the group you wish to review.
3. Click on the specific test within the group to open the Test Result window.
4. Click the download icon next to Drill/test correlation to generate the report.

Once requested, the report will be processed and added directly to your Reports page for easy access.