- Learn from the past
Study last year's forms - they'll identify dos and don'ts and may have a metric that can give year-on-year figures.
Ask delegates about expectations via a registration questionnaire
- Choose the right format
If your audience doesn't have internet access, distribute paper questionnaires, but get them completed before (and never after) the conference's closing remarks.
- Be concise
Keep the form as brief as possible and use open questions. For instance: 'What were the highlights for you?'
- Be relevant
Avoid unnecessary items, such as speaker delivery, that you can evaluate yourself.