Chapter Mastery
Every question has its own mastery level, tracked individually.
Your mastery by chapter
The 5 mastery levels
Each question moves through these levels as you answer it correctly over time.
Unseen
You have never attempted this question.
Attempted
Answered at least once but not yet consistently correct.
Familiar
Getting there — right sometimes, wrong sometimes.
Learned
Consistently correct. The algorithm is spacing out reviews.
Mastered
Fully retained. You rarely see this question now.
How questions move up
The platform uses spaced repetition — the same method used by medical students. Answer a question correctly and it moves up a level. Answer incorrectly and it drops back. Questions at lower mastery levels appear in your sessions more often; mastered questions appear rarely.
Your chapter mastery % is a weighted average across all questions in that chapter.