Would this be affected by putting the Survey Metadata question first - so that it counts as a response because the metadata is collected even if the respondent doesn't answer a question? Or does the fact that the respondent opens the survey invitation count as a partial response?
Best answer by TomGView original
Your above understanding is correct.
If the last question is an optional question and the other ones are forced responses, will a partial response be counted even if all forced responses are answered?
I believe that every time you hit a page break or the end of a block, all the previous responses are saved.