Question types: OU multiple response
qtype_oumultiresponse
Maintained by 
Tim Hunt, 
Phil Butcher, 
Mahmoud Kassaei
The main difference from the standard Moodle multiple choice question type is in the way that grading works. When creating the question, the teacher just indicates which choices are correct. If there are n correct choices, then the student scores 1/n for each correct choice, and loses 1/n for each incorrect choice.