Within a particular course, you can run a leaderboard which shows a top level view of everyone within the course, including elements like XP:
You can also run a report based on 'levels' to show who has/hasn't completed a specific level.
From the 'Moderation' area you can inspect assessment results, including getting % score from folks who have taken the assessment:
If you have multiple Groups accessing the same course, you can also compare them.
Nearly all of these tables are exportable to CSV so that you can get the same results in Excel.
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