Evaluating the cross-national comparability of survey measures of political interest using anchoring vignettes |
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| Affiliation: | 1. Medical University of South Carolina, Department of Pathology and Laboratory Medicine, 165 Ashley Ave, MSC 908, Charleston, SC 29425, United States;2. Mayo Clinic, Division of Laboratory Genetics, Department of Laboratory Medicine and Pathology, 200 1st St SW, Rochester, MN 55905, United States;1. School of Electronic and Electrical Engineering, Wuhan Textile University, Wuhan,= 430073, PR China;2. School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China;3. Department of Electrical & Electronic Engineering, South University of Science and Technology of China, Shenzhen, 518055, PR China;4. School of Power and Mechanical Engineering, Wuhan University, Wuhan, Hubei 430074, PR China;1. giCentre, Department of Computer Science, City, University of London, UK;2. Centre for Comparative Social Surveys, City, University of London, UK;3. Department of Geography and Planning, University of Liverpool, UK |
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| Abstract: | Making cross-groups comparisons by using survey instruments has raised substantial scholarly concerns due to the potential risk of incomparability resulting from differential item functioning (DIF). However, not every survey item necessarily suffers from DIF. In this paper, we argue that, unlike many other survey items (e.g., political efficacy), the usual question used to measure political interest is likely to be largely immune to DIF. Our theoretical argument centers on the relative specificity of the item and a corresponding cultural homogeneity (at least in advanced democracies) in what it means to be politically interested or not. Utilizing the anchoring vignettes technique (King et al., 2004; King and Wand, 2007) in our original surveys in the UK, France, and the Netherlands, we demonstrate the size of DIF is small for the standard political interest question. |
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| Keywords: | Anchoring vignettes Differential item functioning (DIF) Political interest |
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