The Social-Psychological Measurement of Partisanship

This article undertakes a comprehensive examination of the social-psychological theory behind the concept of partisanship and addresses how well contemporary measures, especially the ubiquitous NES/Michigan measure, accord with contemporary theories of measurement, attitudes, and group identification. A number of shortcomings with the NES measure are discovered and more recent, psychologically informed measures that address these shortcomings are explored. After a brief empirical demonstration of the utility of these newer measures, recommendations are made for using new theory and new measures to improve our understanding of the role of partisanship in influencing political behavior.