What questions should be asked in a survey?

The content of the questions depends on the topic of the survey and the type of information you want to find out.

The key is not to over-ask your subjects and to maintain and easy-to-follow format. Ask as few questions as possible, and make them easy to answer. Avoid open-ended questions; instead, use multiple choice, yes/no, and true/false questions, so all each subject needs to do is click some radio buttons or check boxes. It's okay to ask one open-ended question at the end, as long as you make it optional. An example could be, "If there's anything you'd like to add, you can do so in the space below."