One of the scoring options you can configure when adding, or editing, a question is its "N/A" scoring.
It is possible to mark any answer option, regardless of the answer text, as "N/A" so that the selection of that option causes the question's points to be removed from scoring. You can mark more than one answer option as "N/A".
Enable "N/A"
To mark an answer option as"N/A", simply check off the box in the column labelled "N/A" next to that answer option.
As expected, this results in the points for this question being ignored when the "N/A" option is selected:
Disable "N/A"
If we disable the "N/A" setting for that answer option, the points will be scored for the "N/A" selection.
Now, when the N/A option is selected, points for it are scored.
Note that you do not have to turn off the "Omit N/A" setting on the Survey Settings page in order for this to work.
Example!
In the example above, we can easily discern the difference between the scoring of the shop with 'normal' scoring, opposed to the scoring of the shop that has the "Omit N/A" setting turned on.
In the right table, the "Were the women's bathrooms clean?" question was answered with the second option, N/A (0 points), and since the "Omit N/A" is turned on, the highest possible points for that answer are different than they would otherwise be.
The score for the Cleanliness section is in that case 100%, as the Highest Possible score is 1, opposed to 2 when the "Omit N/A" setting is turned off.
The Shop score also differs compared to the 'normal' scoring, as the Highest Possible sum is by that omitted N/A answer lower than it would be in the 'normal' scoring version of the shop (9 opposed to 10).
N/A answers can't be in the same group as non-N/A answers
When dealing with groups, either all or no questions that share the group need to be marked N/A for the scoring to work properly!
In the example, answer option 3 is in group one, same as answer options 1 and two. However, you cannot mark answer option 3 as N/A, as it is in the same group with the other two answer options that are not marked N/A.