I'm so glad that Khan has eight full tests that I can practice on before I take the actual one. However, I think there's a minor improvement that can be made to the tests. The practice quizzes (not the full length test) have this bar at the bottom that allows you to easily click at a particular number at the test and it will take you there immediately. Also, after you do the practice quiz, it immediately shows which items you missed for quick reference. I think this feature should be added to the full length practice tests as to make navigation around the test easier. Instead of clicking "back" or "forward" repeatedly, you can just click that particular number to go there. This also makes reviewing and going back to items you skipped easier.