The Analysis of the Nonresponse in Sampling Surveys

After controlling the topic, questionnaire and surveying timing, adults aged from 15 to 65 are sampled. Without using substitute or inflated samples, the response rate of the mail survey is 47.1%, nonresponse rate 52.9%.

Those who are under age 30 or above age 45, low education level have lower response rate; gender or whether given lottery incentive does not make a difference on response rate. In the telephone interview, the results show that among all dialings, the chance that can't make the phone call through is 2/5. Among the phone calls answered, the proportion of successful interview is 26%, the refusal is 31%, and 43% of the phone calls are aborted after the initial contacts.