Anchoring the Experts: Using Vignettes to Compare Party Ideology Across Countries

Posted: 1 Aug 2011 Last revised: 3 Jun 2014

See all articles by Ryan Bakker

Ryan Bakker

University of Georgia

Erica Edwards

Independent

Seth Jolly

Syracuse University

Jonathan Polk

University of Georgia

Jan Rovny

University of North Carolina (UNC) at Chapel Hill - Department of Political Science

Marco Steenbergen

University of Bern

Date Written: 2011

Abstract

This paper assesses the cross-national comparability of expert judgments of party positions. So far, most work in this area has focused on the cross-validation of different data sources with which party positions can be measured. This paper takes a novel approach and brings to bear data from a survey experiment performed in the 2010 Chapel Hill Expert Survey (CHES) designed to assess the degree to which experts in different countries evaluate party positions using a common metric. The 2010 wave of CHES includes a section composed of a battery of experimental vignettes. This series of policy statements by hypothetical political parties was designed to tap variation on questions pertaining to economic left-right, European integration, and “new politics.” Experts from all countries included in the survey place these same hypothetical parties on a series of eleven point scales, which allow analysts to explore the extent to which experts in different cultures and countries view the same hypothetical party through a similar conceptual framework. The vignette data can also help to uncover and cor- rect for any expert or country-specific biases that may exist. This paper presents preliminary evidence of how much cross-national difference in expert context explains variation in differences between party placements.

Keywords: survey, methodology, political parties, Europe

Suggested Citation

Bakker, Ryan and Edwards, Erica and Jolly, Seth K. and Polk, Jonathan and Rovny, Jan and Steenbergen, Marco, Anchoring the Experts: Using Vignettes to Compare Party Ideology Across Countries (2011). APSA 2011 Annual Meeting Paper, Available at SSRN: https://ssrn.com/abstract=1900008

Ryan Bakker

University of Georgia ( email )

Athens, GA 30602-6254
United States

Erica Edwards

Independent ( email )

Seth K. Jolly

Syracuse University ( email )

Syracuse, NY 13244
United States

Jonathan Polk (Contact Author)

University of Georgia ( email )

Athens, GA 30602-6254
United States

Jan Rovny

University of North Carolina (UNC) at Chapel Hill - Department of Political Science ( email )

361 Hamilton Hall
CB#3265
Chapel Hill, NC 27599
United States

Marco Steenbergen

University of Bern ( email )

Gesellschaftsstrasse 49
Bern, BERN 3001
Switzerland

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