If nothing was unclear or difficult, say so. Skip questions about steps you did not experience; use not applicable where appropriate.

What effort did you expect before starting?
Which question felt unnecessary?
What introduction would help?

Author notes / illustrative keys where applicable:
1. Use this answer to locate the part of the experience that needs explanation. The example issue to investigate is: invitations imply a short survey but include long written prompts.
2. A question considered unnecessary reveals possible duplication or a weak connection to the invitation's stated purpose. Review its decision value and sequence, without dropping required context solely because one respondent disliked answering.
3. Turn the requested improvement into a testable next step. One illustrative action is: describe the effort honestly and remove redundant prompts.