Demographic questions are used to break down the data when the survey is complete. If you choose to include demographic questions, they should be formulated to allow you to obtain useful cross-sections of the survey results from different respondent groups. Typical demographic questions identify respondents by gender, age, geographic location, job function, etc.
Take some time to think about how you will use the survey results. By including effective demographic questions, you will be able to get more understanding and value from the survey results.
