Tell the user to follow these steps:
1. Go to the Knowledge Check section and select a Knowledge Check category.
2. On the next page, you'll see a "Review All" link and individual "Review" links next to each question. Click "Review" to jump to a specific question, and click "Review All" to start from the beginning.
3. On the right-hand side of the screen, above the answer choices, you will see a bar marked with "Low," "Medium," and "High." Click on these words to mark your Confidence Level accordingly. Your selection will save automatically.