The Open University is not only the organization pushing the development and innovation of the Quiz Module for Moodle, it’s also recently provided one of the best primers for learning about Moodle’s quiz, the pedagogical theory behind assessment, and showcases the many OU create question types as well. The module is freely available to registered users (and has been posted to Moodle.net), and they estimate about 3 hours to complete it. The conditional release of materials will help to keep you on track.
As a bonus you can also “work along” with the training module to create your own quiz questions on your own Moodle (which is the goal of the tutorial). Check it out at http://www.open.edu/openlearnworks/course/view.php?id=1643