Editing Quizzes
You can usually edit a quiz by editing the article and clicking the "Edit Quiz" link at the top of the editor. 
However, in order to secure the answers, you can only edit a quiz under specific conditions:
- If you created the article
- If you are an approver for the article
- If you are an administrator
- If you have taken and passed the quiz.
If you do not meet this criteria then you will not be able to edit the quiz, and instead you will see a message appear explaining the situation.
The quiz data is encrypted internally, and is hidden from users who do not meet this criteria. This is the case when viewing the history of the article also.