1, professionals (such as teachers/doctors/lawyers, etc. )

2. Service personnel (catering waiter/driver/salesperson, etc.). )

3. Freelancers (such as writers/artists/photographers/tour guides, etc. )

4. Workers (such as factory workers/construction workers/urban sanitation workers, etc. )

5. Company employees

6. Institutions/civil servants/government workers

7. Students

8. housewives

9. Others (businessmen)

Principles of questionnaire design

1, the theme is clear. According to the theme, put forward the topic from the reality, the purpose of the question is clear, the focus is prominent, and there is no unnecessary problem.

2. Reasonable structure and strong logic. The arrangement of questions should have a certain logical order, which conforms to the respondent's thinking program. Generally speaking, it is easy before difficult, simple after complex, concrete after abstract.

3, easy to understand. The questionnaire should make the respondents clear at a glance and be willing to answer truthfully. The tone of the questionnaire should be friendly, in line with the understanding and cognitive ability of the respondents, and avoid using technical terms. Take some skills to investigate sensitive questions, so that the questionnaire can be answered reasonably, avoid subjectivity and suggestion, and avoid the distortion of answers.

4. Control the length of the questionnaire. The time to answer the questionnaire is controlled at about 20 minutes, which neither wastes a question nor misses a question in the questionnaire.

5. It is convenient for data inspection, collation and statistics.