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Be Wary of Multiple-Answer Questions in D2L

Multiple Answer

The move to Desire2Learn has brought many advantages, but it has also brought the occasional problem. One that we are now discovering is how Desire2Learn scores multiple-answer questions (sometimes known as multiselect). Randy Fisher of Finance and Jan Costenbader of FITS first noticed a discrepancy in how D2L grades these types of quizzes. Here is how Jan has summarized his findings:

The important thing to realize is that incorrect answers that are not selected count towards the point total in Right minus wrong and Right answers

All or nothing

Students receive full points for the question only if they select all of the correct answers and none of the incorrect answers. They receive zero points if they miss any correct answers or select any incorrect answers.

Right minus wrong

Students receive points equal to the number of right answers they choose minus the number of incorrect answers they choose. For example, if each answer is worth one point and a student selects 3 correct answers and 1 incorrect answer, they will receive 2 points for the question (3 minus 1).

Note: To determine how much each answer is worth, the system takes the total number of points that the question is worth and divides it by the number of correct answers. For example, if a question is worth 4 points and has two correct answers, each correct answer is worth 2 points, and each incorrect answer is worth -2 points (students receive a minimum of zero on a question: they cannot receive a negative mark).

Right answers

Students receive points for each correct answer they select and for incorrect answers they leave blank. Incorrect answers selected and correct answers left blank are ignored.

Jan’s suggestions are particularly important if you have imported a multiple-answer quiz from Blackboard.

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