Event survey questions: why three is enough

Length is the reason nobody responds

Every extra question costs you responses from the people who were mildly positive, which is most of the room. What survives a long survey is the strongly delighted and the genuinely annoyed, and a picture built from only those two groups is not the picture you needed.

Ask what you will act on

If a question's answer would not change what you do next time, it is costing you responses for nothing. Most surveys are padded with questions asked out of curiosity rather than intent, and readers can feel the difference.

Totals, not names

People answer honestly when they are confident the answer is not attributable. Intro Connect shows a host the totals and never who said what, which is a deliberate limit: the moment a guest suspects otherwise, the answers start being polite instead of true.

Ask while it is fresh

A survey sent a week later measures memory, not experience. The answers you want exist for roughly a day, and after that you are collecting a vaguer version of the same opinion.