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- Comparisons of Estimation Efficiencies among Various Dual-frame Telephone Survey Weighting Procedures
- Yung-tai Hung
- 2021 / 11Volume 29, No.2
Abstract
This study employs indicators of election prediction errors to evaluate the effectiveness and pros and cons of various estimation procedures for combining data sets collected from dual-frame telephone surveys.
There are basically three types of combining dual-frame survey data, namely, all landline survey data plus those of cell-phone only; all cell-phone survey data plus those of landline only, and combing both sets of data according to their coverage proportions in the population. This study shows that the landline phone survey samples differ systematically from the cell-phone survey samples in many demographical characteristics. Using a total predicting error indicator to compare the results of various estimation procedures in three election results, namely, the 2016 presidential election, the 2018 referendum on the same-sex marriage law, and the 2020 presidential election, this study finds the following: (1) The original data collected from the landline survey fares the best. (2) Adjusting data by applying weights derived from government household registration data enlarges the prediction errors for the landline phone survey but performs slightly better for the cell-phone survey. (3) Due to selection bias from cell-phone survey samples, the prediction errors tend to be further away from the true election results. The damage done does not redeem its good intention for correcting the coverage shortcomings caused by the traditional landline phone survey.
The study also suggests several issues to be explored in future studies: (1) Investigate further the characteristics of using both landline and cell-phone samples for landline and cell-phone surveys. (2) Investigate the mode effects on landline and cell-phone surveys. (3) Investigate the performance of dual-frame telephone surveys in areas other than electoral studies.
- A Comparative Analysis of Weighting Approaches for Dual-Frame Telephone Surveys
- Pei-chun Hou
- 2023 / 05Volume 29, No.2
Abstract
This study uses data from a 2020 dual-frame telephone survey to compare several popular weighting approaches. The impact of these approaches on the variance and bias in both single-frame and dual-frame samples, as well as in overlap and screener designs, is discussed. Additionally, this study examines the differences between the estimates of the non-proportion dual-frame sample allocation to provide practical recommendations.
The results indicate the following: (1) if the sample allocation of the dualframe samples is in nearly equal proportions, minor differences occur in the weighting loss between the overlap and screener designs. Only the post-stratified estimating procedure reveals some differences in the estimates with other designs. (2) If the sample allocation of the dual-frame samples is in unequal proportions, such as one single-frame national sample and the others are only 1/3 or 1/2 of the former, then after calibration, the weighting loss is only slightly increased, and these approaches produce only tiny differences in the calibrated estimates between the combinations.
- Political bias in the news coverage of Taiwan's first presidential election: a comparative analysis of broadcast TV and cable TV news
- Ven-hwei Lo, Pu-tsung King, Ching-ho Chen, and Hwei-lin Huang
- 1995 / 11Volume 29, No.2
Abstract
- Newspaper Coverage of the 2000 Presidential Election
- Ven-Hwei Lo and Wei-Wei Vivian Huang
- 2000 / 05Volume 29, No.2
Abstract
- Selection Bias Models on Election Prediction
- Ying-Lung Chou and Shing-Yuan Sheng
- 2005 / 11Volume 29, No.2
Abstract
- Newspaper Coverage of the 2004 Presidential Election in Taiwan
- Ven-Hwei Lo, Huei-Hsing Wang, and Gee-Chin Hou
- 2007 / 11Volume 29, No.2
Abstract
- Partisan Bias in Taiwan Television Enterprise's Coverage of the Four Presidential Elections in Taiwan: 1996-2008
- James Yu-Chan Lin and Ven-Hwei Lo
- 2010 / 05Volume 29, No.2
Abstract
- Combining List Experiment and Internet Survey: Analysis of Taiwanese People’s Attitudes toward Acceptance of Homosexual
- Guang Yang and Chin-yin Cheng
- 2019 / 11Volume 29, No.2
Abstract
Thus, we combined list experiment and internet survey and tried to figure out the acceptance of homosexuality in Taiwan. The data showed that the acceptance of homosexuality among Taiwanese is more than 70%. By comparing the percentages of acceptance in direct and indirect questions, we found that most of answers given by the respondents are independent and undistorted under social pressure. Also, personality, religious factors and party identification still play important roles on the acceptance of homosexuality in Taiwan.