"Partial Mark Questions" in Akindi are where the student is awarded partial credit for each correct response up to the full weight of the question.
Partial mark questions
Each correct response is equally weighted to make up the total number of possible marks for that question.
For example, if the correct response is ACD, and the question is worth 1 mark, then the student will receive 0.33 marks (0.3 rounded) for selecting 1 correct answer option, 0.67 marks (0.7 rounded) for selecting 2 correct answer options and 1 mark for selecting all 3 correct answer options.
However if the student selects more answer options than there are in the answer key, then Akindi will award 0 marks for the question (even if some of the answers they select are correct) to avoid students selecting all answers to try and get some partial credit.
For example, if they selected 'ACDE' when the correct answer was 'ACD', the student would receive 0 marks for the respective question.
Partial mark questions with "deduct incorrect answers" enabled
For partial mark questions where 'Deduct incorrect answers' has been enabled, Akindi will deduct partial credit for each incorrect response, however the score will never go below 0.
For example, if the question was worth 1 mark, and there were 3 correct responses, each response would be worth 0.33 marks and this is also what Akindi would deduct if a student got a question wrong and you had enabled 'deduct incorrect marks'.
Using the original example, if the student selects 'ABD', then Akindi will award 0.67 marks for correctly selecting 'A' and 'D', however, 0.33 marks would be deducted for the incorrect response 'B'. The total marks the student would therefore receive for this question is 0.33 marks.
What happens when the student selects too many answer options?
When "Deduct incorrect answers" has been enabled, Akindi will not automatically award '0' if students select more answer options than there are on the answer key.
If the student selected 'ACDE' then the student would get 1 mark for selecting 'ACD', but would lose 0.33 marks for selecting 'E', and would therefore receive 0.67 (or 0.7 rounded up) for that question.