• Title, Summary, Keyword: landline phone survey

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It Matters Where and With Whom You Are: A Comparison of Mobile Phone and Landline Phone Survey Interviews

  • Kim, Ock Tae;Cho, Sung Kyum
    • Asian Journal for Public Opinion Research
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    • v.1 no.1
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    • pp.26-41
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    • 2013
  • The rise and fall of social research methods rely on how much a certain method is able to appropriately reflect the change of society. The present research proposes new mobile surveying methods, considering the current and future trends in Korea. In particular, this research focuses on environmental pressure (time constraints, the presence of others and the place) as one of the major factors influencing the effects of survey modes. For example, landline surveys are conducted in the respondent's home, which is a private and fixed space. On the other hand, surveys on mobile phones can be conducted in diverse places with other people around. After sampling 500 landline respondents and 500 mobile phone respondents using a quota method, the same questionnaire was used for both the mobile and landline interviews. The findings are generally consistent with the literature supporting the data quality and comparability of the mixed mode survey. These results are encouraging for researchers designing surveys that feature mobile phone data collection.

Challenges to Telephone Survey Sampling: Frames and Weighting Strategies

  • Kim, Sun-Woong
    • Proceedings of the Korean Statistical Society Conference
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    • pp.79-84
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    • 2005
  • The growing number of households with only cellular phones and no landline telephones, is decreasing the coverage of the landline frame. Dual frame sample designs are considered which draw phone numbers from the landline and the cellular number frame. Cellular phones may be used as personal or household devices. Weighting strategies appropriate to compensate for unequal probabilities in selecting dual frame samples are proposed. Also, some current issues are discussed.

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A Study on Mixed-Mode Survey which Combine the Landline and Mobile Telephone Interviews: The Case of Special Election for the Mayor of Seoul (유.무선전화 병행조사에 대한 연구: 2011년 서울시장 보궐선거 여론조사 사례)

  • Lee, Kyoung-Taeg;Lee, Hwa-Jeong;Hyun, Kyung-Bo
    • Survey Research
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    • v.13 no.1
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    • pp.135-158
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    • 2012
  • Korean telephone surveys have been based on landline telephone directory or RDD(Random Digit Dialing) method. These days, however, there has been an increase of the households with no landline, or households with the line but not willing to register in the directory. Moreover, it is hard to contact young people or office workers who are usually staying out of home in the daytime. Due to these issues above, the predictability of election polls gets weaker. Especially, low accessibility to those who stay out of home when the poll's done, results in predictions with positive inclination toward conservatism. A solution to resolve this problem is to contact respondents by using both mobile and landline phones-via landline phone to those who are at home and via mobile phone to those who are out of home in the daytime(Mixed Mode Survey, hereafter MMS). To conduct MMS, 1) we need to obtain the sampling frames for the landline and mobile surveys, and 2) we need to decide the proportion of sample size of both. In this paper, we propose a heuristic method for conducting MMS. The method uses RDD for the landline phone survey, and the access panel list for the mobile phone survey. The proportion of sample sizes between landline and mobile phones are determined based on the 'Lifestyle and Time Use Study' conducted by Statistics Korea. As a case study, 4 election polls were conducted in the periods of the special election for the mayor of Seoul on Oct 26th, 2011. From the initial 3 polls, reactions and responses regarding the issues raised during the survey period were appropriately covered, and the final poll showed a very close prediction to the real election result.

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