Hi! It seems your question got posted twice -- so I am copying and pasting my response from the other question here:
Hi!
That sounds about right, but check out these explanations:
Here is the Canvas Guide for Classic Quizzes:
It reads: "
- To calculate scores for Multiple Answers quiz questions, Canvas divides the total points possible by the amount of correct answers for that question. This amount is awarded for every correct answer selected and deducted for every incorrect answer selected. No points are awarded or deducted for correct or incorrect answers that are not selected. For example, an instructor may create a Multiple Answer quiz question with 9 points possible that includes three correct choices and two incorrect choices. If a student selects two correct answers and one incorrect answer, they would be awarded 3 total points for that question. This would be calculated by awarding 3 points (9 total points divided by 3 correct answers) for each correct answer and subtracting 3 points for the incorrect answer."
And here is the Guide for New Quizzes:
It reads: "Partial credit is calculated by dividing the total points possible by the number of correct answers for the question. This amount is awarded for each correct answer selected and deducted for each incorrect answer selected. No points are awarded or deducted for answers that are not selected. Zero is the lowest possible score. For example, if a question is worth 4 points and there are 2 correct answers, Canvas divides 4 by 2 and awards 2 points for correct answers selected and deducts 2 points for incorrect answers. If a student selects 2 correct answers and 1 incorrect answer, the student will receive 2 points total (4 points awarded for correct answers and 2 points deducted for incorrect answers)."
