Multiple choice question behavior (selecting multiple choices)

Multiple choice question behavior (selecting multiple choices)

by Michael Tanczos -
Number of replies: 3

When students take a multiple choice test where they can select multiple choices, why is it that checking ALL answers yields full credit for the question?  I'm not even sure that issuing negative credit for an incorrect response is all that fair.  Is this really by design to work this way?  Am I losing it or is there a workaround?

- Michael Tanczos

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In reply to Michael Tanczos

Re: Multiple choice question behavior (selecting multiple choices)

by Deleted user -
Yes, this is unfortunately a drawback of Multiple-Choice questions with Multiple-Answers, that I have previously tried to get changed. There are some links at the bottom of threads that I started almost two years ago:

There are only two work arounds that I can come up with:
(1) Assign a -100% grade to each wrong answer. This way, they will get zero marks for the question, even if they only get one wrong answer.
(2) Split the grade assignment evenly between correct answers and incorrect answers.
Example #1: If you have a question with say 3 correct answers and say 4 incorrect answers, each correct answer would have a grade of +33.333%, and each incorrect answer would have a grade of -25%.
Example #2: A questions with 2 correct answers and 3 incorrect answers would have correct answer grades at 50%, and incorrect answer grades at -33.333%.
FORMULA:
100% divided by number of correct answers = grade for each correct answer.
-100% divided by number of incorrect answers = grade for each incorrect answer.

Read these threads as well:
http://moodle.org/mod/forum/discuss.php?d=65182
http://moodle.org/mod/forum/discuss.php?d=65631

Also, go vote for this issue in the Issue Tracker:
http://tracker.moodle.org/browse/MDL-3784
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In reply to Deleted user

Re: Multiple choice question behavior (selecting multiple choices)

by Deleted user -
And here's the same issue again in the tracker that I posted:
http://tracker.moodle.org/browse/MDL-8766
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In reply to Deleted user

Re: Multiple choice question behavior (selecting multiple choices)

by Michael Tanczos -

Thanks for the feedback.  It's kind of odd that the behavior is as it is given that even solutions with "negative" grading don't really punish students appropriately for selecting more than a certain number of answers.  To be honest, it kind of devalues the multiple choice multiple answer question.  I'm surprised that it has been noticed for so long yet nobody has addressed it.

- Michael Tanczos

Average of ratings: -