Moodle Quiz offers a scoring option called Certainty Based
Marking. When this option is selected, students are asked how certain they are
of their answer after answering every question.
The following excerpt from Moodle
documentation explains how it works.
“When a student answers a
question they also have to state how sure they are of the answer: not very
(less than 67%); fairly (more than 67%) or very (more than 80%). Their grading
is then adjusted according to how certain they are, which means that for
example if they answered correctly but were only guessing, their mark is
adjusted from 1 to 0.33. If they answered wrongly but were very sure, their
mark is adjusted from 0 to -2.”
This grading option is selected in the quiz settings, and is
one of many choices under
the Question behavior section.
