Integrating probability and nonprobability samples for survey inference


Wiśniowski, Arkadiusz ; Sakshaug, Joseph W. ; Perez Ruiz, Diego Andres ; Blom, Annelies G.


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DOI: https://doi.org/10.1093/jssam/smz051
URL: https://madoc.bib.uni-mannheim.de/55133
Additional URL: https://academic.oup.com/jssam/article/8/1/120/571...
URN: urn:nbn:de:bsz:180-madoc-551332
Document Type: Article
Year of publication: 2020
The title of a journal, publication series: Journal of Survey Statistics and Methodology : JSSAM
Volume: 8
Issue number: 1
Page range: 120-147
Place of publication: Oxford
Publishing house: Oxford Univ. Press
ISSN: 2325-0984 , 2325-0992
Publication language: English
Institution: Außerfakultäre Einrichtungen > SFB 884
School of Social Sciences > Methoden d. empirischen Sozialforschung insbes. Internet Panel Survey-Forschung (Blom 2017-)
Außerfakultäre Einrichtungen > Mannheim Centre for European Social Research - Research Department A
Pre-existing license: Creative Commons Attribution 4.0 International (CC BY 4.0)
Subject: 300 Social sciences, sociology, anthropology
Abstract: Survey data collection costs have risen to a point where many survey researchers and polling companies are abandoning large, expensive probability-based samples in favor of less expensive nonprobability samples. The empirical literature suggests this strategy may be suboptimal for multiple reasons, among them that probability samples tend to outperform nonprobability samples on accuracy when assessed against population benchmarks. However, nonprobability samples are often preferred due to convenience and costs. Instead of forgoing probability sampling entirely, we propose a method of combining both probability and nonprobability samples in a way that exploits their strengths to overcome their weaknesses within a Bayesian inferential framework. By using simulated data, we evaluate supplementing inferences based on small probability samples with prior distributions derived from nonprobability data. We demonstrate that informative priors based on nonprobability data can lead to reductions in variances and mean squared errors for linear model coefficients. The method is also illustrated with actual probability and nonprobability survey data. A discussion of these findings, their implications for survey practice, and possible research extensions are provided in conclusion.

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Wiśniowski, Arkadiusz ; Sakshaug, Joseph W. ; Perez Ruiz, Diego Andres ; Blom, Annelies G. (2020) Integrating probability and nonprobability samples for survey inference. Open Access Journal of Survey Statistics and Methodology : JSSAM Oxford 8 1 120-147 [Article]
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