From Mahara Wiki
This is the documentation page for the Survey plugin by Gregor Anzelj.
Starting info from Gregor
Sample surveys in XML format for Survey plugin are available here: https://github.com/anzeljg/mahara-survey/tree/master/survey/surveys
A "Beta" (test) version of the plugin is available at: https://github.com/anzeljg/mahara-survey
Please use it only in development environment (NOT the production one!)
Some time ago I wanted to start writing the Manual for creating custom survey. Here is that attempt: https://github.com/anzeljg/mahara-survey/blob/master/survey/manual.docx