Ask usable questions. Collect responses at a level with which the information can easily be interpreted and applied.
Objective
To understand participant learning experiences during an editing workshop.
Very Poor
Please describe your experience during the editing workshop.
An open-ended question to understand a specific attitude is too broad; its best to first ask specific questions followed by open-ended questions for any additional comments.
Poor
Would you say that your overall experience during the editing workshop was positive or negative?
While getting a sense of participant enjoyment is important, it does not help to identify learning that occurred.
Better
To what extent do you agree or disagree with the following statements:
I enjoyed learning about editing Wikimedia
I can tell a friend about the mission of Wikimedia
I feel confident that I can edit an article
I am confident that I can upload a photo to Commons
I can explain to a friend what a Wikimedia project is
With this type of question, the details of the participants' learning experience can be better understood and the workshop may be improved based on how respondents answer.