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Bias caused by nonresponses and suggestion for increasing response rate in the telephone survey on election
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 Title & Authors
Bias caused by nonresponses and suggestion for increasing response rate in the telephone survey on election
Heo, Sunyeong; Yi, Sucheol;
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 Abstract
Thanks to the advantages of low cost and quick results, public opinion polls on election in Korea have been generally conducted by telephone survey, even though it has critical disadvantage of low response rate. In public opinion polls on election in Korea, the general method to handle nonresponses is adjusting the survey weight to estimate parameters. This study first drives mathematical expression of estimator and its bias with variance estimators with/without nonresponses in election polls in Korea. We also investigates the nonresponse rate of telephone survey on 2012 Korea presidential election. The average response rate was barely about 14.4%. In addition, we conducted a survey in April 2014 on the respondents`s attitude toward telephone surveys. In the survey, the first reason for which respondents do not answer on public opinion polls on election was "feel bothered". And the aged 20s group, the most low response group, also gave the same answer. We here suggest that survey researchers motivate survey respondents, specially younger group, to participate surveys and find methods boosting response rate such as giving incentive.
 Keywords
Bias;incentive;nonresponse;telephone survey;the 18th Korea presidential election survey;
 Language
Korean
 Cited by
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