Try to compare and analyze the advantages and disadvantages of the two survey methods: face-to-face survey and telephone survey.

Answer: face-to-face surveys, direct visits to respondents, listen to the views of respondents in person. Ask the respondents to fill out the questionnaire in person, explain the purpose, solve the condensation problem, eliminate misunderstandings, mutual inspiration, in-depth discussion, deepen the impression, the response rate is high. However, the respondents are easily influenced by the views and expressions of the interviewers, or the opinions of the authority and the majority. This affects the accuracy of the information. Thus, this method requires a lot of manpower, time and expense, high cost. Telephone survey. Investigators in accordance with a unified questionnaire, the question to the respondent by telephone, written answers, telephone survey speed, wide range, low cost, high response rate, small error. Answering questions over the phone is generally more candid and is suitable for people who are not used to face-to-face interviews. However, the telephone interview time is short, the answer to a single room, difficult to in-depth, and subject to the limitations of telephone equipment.