What are the advantages and disadvantages of questionnaire survey?

1. Questionnaire survey can break through the time and space constraints and save time, money and manpower.

2. The self-administered questionnaire survey method has good anonymity.

3. The data obtained by questionnaire method is convenient for quantitative processing and analysis.

4. Questionnaires can avoid subjective bias and reduce human error.

Disadvantages of questionnaire survey:

1. I can't understand the vivid and concrete social situation.

2. Lack of flexibility makes it difficult to conduct in-depth qualitative investigation.

3. The authenticity and quality of survey data are often not guaranteed.

4. The recovery rate is sometimes difficult to guarantee.

5. Respondents are required to have a certain degree of education.