This sounds like a great application of the lesson
module. It even has the ability to link to a certificate (if you install that add on module to your moodle site) upon the completion of the activity.
Here are some links for setting up lessons, as well as one how to link the completion of the lesson to a certificate
General Lesson Info:
Creating a Lesson Activity:
Setting up Normal Lesson Pages:
(In the above webpage, simply think of a branch table as a page that might have back and next links)
Adding a Question Page:
Setting up the link to the certificate at the end of the lesson activity:
I know it is a lot of info, but it should give you a pretty good overview of what I think would be the best module for the self-study activity you described. If you run into any problems feel, we'll do our best to help you. Above all I would recommend walking through the instructions to create a lesson and create the different pages that will make up the lesson and as you run into problems, the Moodle community is pretty good at being helpful
Hope some of this proves helpful.