Quizzes are a great way of testing your understanding.
Taking a test is not just a passive mechanism for assessing how much people know, according to new research. It actually helps people learn, and it works better than a number of other studying techniques.
You can complete a quiz if you have REGISTERED and LOGGED on to the site. Also, if you are a registered user, you can create your own quiz for others to use (please note that they will need to be approved before being accessible to users).