Understanding

Checked evidence comes from comparing your answer with an authored key: which option you chose and how it is assessed, your verdicts on claims, your sequence, the lines you flagged.

Self-assessed evidence comes from your written reasoning. After seeing the reference, you mark which specific points your answer covered, and for each one you point to the part of your answer that says it. Nothing grades your writing automatically, so it is only as honest as your marks.

Every exercise trains some of six dimensions (trace, explain, defend, change, break, implement) and touches named concepts. An exercise's signal is its weakest part: a sound decision defended with missing reasoning is partial, not strong.