Evaluation of Survey Data Quality Based on Interviewers’ Assessments: An Example from Taiwan’s Election and Democratization Study

Researchers usually examine the quality of survey data by several conventional measures of reliability and validity. However, those measures are mainly designed to examine the quality of an individual measurement, rather than the quality of a data set as a whole. There is a relative lack of methods...

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Main Authors: Chi-lin Tsai, Tsung-Wei Liu, Yi-ju Chen
Format: Article
Language:English
Published: ANPOR Korea 2019-02-01
Series:Asian Journal for Public Opinion Research
Subjects:
Online Access:http://kpubs.org/article/articleMain.kpubs?articleANo=ORJSBL_2019_v7n1_57
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author Chi-lin Tsai
Tsung-Wei Liu
Yi-ju Chen
author_facet Chi-lin Tsai
Tsung-Wei Liu
Yi-ju Chen
author_sort Chi-lin Tsai
collection DOAJ
description Researchers usually examine the quality of survey data by several conventional measures of reliability and validity. However, those measures are mainly designed to examine the quality of an individual measurement, rather than the quality of a data set as a whole. There is a relative lack of methods for evaluation of the overall data quality. This paper attempts to fill this gap. We propose using interviewers’ assessments as one of criteria for evaluating the overall data quality. Interviewers are the ones who literally conduct and thus directly observe interviews. Taiwan’s Election and Democratization Studies (TEDS) have required interviewers to assess how trustworthy the responses of each of their interviewees are, and to provide several descriptions about the process and environment of the interviews. We use this information to evaluate the data quality of TEDS surveys and compare it with the results from the conventional test-retest method. The findings are that the interviewer assessment is a fair indicator of the overall reliability of attitudinal questions but not a good indicator when factual questions are examined. Regarding the evaluation of data validity, more data is required to see whether or not interviewers’ assessment is informative in terms of data quality.
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spelling doaj.art-dbca1c0d23e94cca9cec03554a917b062022-12-22T00:41:21ZengANPOR KoreaAsian Journal for Public Opinion Research2288-61682019-02-0171577410.15206/ajpor.2019.7.1.5722886168Evaluation of Survey Data Quality Based on Interviewers’ Assessments: An Example from Taiwan’s Election and Democratization StudyChi-lin TsaiTsung-Wei LiuYi-ju ChenResearchers usually examine the quality of survey data by several conventional measures of reliability and validity. However, those measures are mainly designed to examine the quality of an individual measurement, rather than the quality of a data set as a whole. There is a relative lack of methods for evaluation of the overall data quality. This paper attempts to fill this gap. We propose using interviewers’ assessments as one of criteria for evaluating the overall data quality. Interviewers are the ones who literally conduct and thus directly observe interviews. Taiwan’s Election and Democratization Studies (TEDS) have required interviewers to assess how trustworthy the responses of each of their interviewees are, and to provide several descriptions about the process and environment of the interviews. We use this information to evaluate the data quality of TEDS surveys and compare it with the results from the conventional test-retest method. The findings are that the interviewer assessment is a fair indicator of the overall reliability of attitudinal questions but not a good indicator when factual questions are examined. Regarding the evaluation of data validity, more data is required to see whether or not interviewers’ assessment is informative in terms of data quality.http://kpubs.org/article/articleMain.kpubs?articleANo=ORJSBL_2019_v7n1_57data qualityinterviewers’ assessmentreliabilityvalidityTaiwan’s Election and Democratization Study
spellingShingle Chi-lin Tsai
Tsung-Wei Liu
Yi-ju Chen
Evaluation of Survey Data Quality Based on Interviewers’ Assessments: An Example from Taiwan’s Election and Democratization Study
Asian Journal for Public Opinion Research
data quality
interviewers’ assessment
reliability
validity
Taiwan’s Election and Democratization Study
title Evaluation of Survey Data Quality Based on Interviewers’ Assessments: An Example from Taiwan’s Election and Democratization Study
title_full Evaluation of Survey Data Quality Based on Interviewers’ Assessments: An Example from Taiwan’s Election and Democratization Study
title_fullStr Evaluation of Survey Data Quality Based on Interviewers’ Assessments: An Example from Taiwan’s Election and Democratization Study
title_full_unstemmed Evaluation of Survey Data Quality Based on Interviewers’ Assessments: An Example from Taiwan’s Election and Democratization Study
title_short Evaluation of Survey Data Quality Based on Interviewers’ Assessments: An Example from Taiwan’s Election and Democratization Study
title_sort evaluation of survey data quality based on interviewers assessments an example from taiwan s election and democratization study
topic data quality
interviewers’ assessment
reliability
validity
Taiwan’s Election and Democratization Study
url http://kpubs.org/article/articleMain.kpubs?articleANo=ORJSBL_2019_v7n1_57
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AT tsungweiliu evaluationofsurveydataqualitybasedoninterviewersassessmentsanexamplefromtaiwanselectionanddemocratizationstudy
AT yijuchen evaluationofsurveydataqualitybasedoninterviewersassessmentsanexamplefromtaiwanselectionanddemocratizationstudy