This report will help you understand most of your mastery-based learning with Khan Academy. For a list of information that is visible, see below.
When you click on Progress in the left-hand navigation bar (see the image above), you will land on your Individual Student report, which includes exercise minutes, total learning minutes, and an Activity Log. This log can be sorted by timeframe, material, and type of activity. Want to know what skills you mastered when you took a unit test or quiz? Take a look at the "change" column to see what skills moved as a result of your efforts!
Sometimes, quizzes, unit tests and course challenges on Khan Academy include skills that build on other pre-requisite skills (for example, you need to be able to add single-digit numbers before you add multi-digit numbers!). When these more difficult skills are completed, it also impacts mastery level of pre-requisite skills. This is why you sometimes may see more skills being leveled up or down on than questions that were completed on a quiz, unit test, or course challenge.