You will have to do that analysis and delve deeper into the matter. How will you determine whether to put the questions in the long form or the short form? I have not asked anyone about this, but if I asked everyone around the table, I think everyone would want them to be in the short form. That way they would be in both questionnaires and the response rate would be 100%.
On March 21st, 2018. See this statement in context.