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	Social Identity Political Measurement	Scala dell'Identità Nazionale
Campo	Psicologia politica	Psicologia politica
Famiglia	Process / pipeline	Process / pipeline
Anno di origine	2015	1989
Ideatore	Leonie Huddy, Lilliana Mason & Lene Aaroe	Richard Kosterman & Seymour Feshbach
Tipo	Self-report identity scale	Self-report
Fonte seminale	Huddy, L., Mason, L., & Aaroe, L. (2015). Expressive partisanship: Campaign involvement, political emotion, and partisan identity. American Political Science Review, 109(1), 1-17.	Kosterman, R., & Feshbach, S. (1989). Toward a measure of patriotic and nationalistic attitudes. Political Psychology, 10(2), 257-274.
Alias	Political Social Identity Scale, Partisan Social Identity Measure, Expressive Partisanship Scale	NIS, National Attachment Scale, Patriotism Scale
Correlati	4	3
Sintesi	Social identity measurement in political behavior applies social identity theory (Tajfel & Turner, 1979) to political groups, treating partisanship, ideology, or movement membership as a social identity rather than a mere instrumental affiliation. Huddy, Mason and Aaroe (2015) adapted Mael and Tetlock-style identity items into a partisan social-identity scale that measures expressive, emotionally charged group attachment and predicts campaign activity and political emotion better than issue agreement.	The National Identity Scale measures the strength and character of individuals' identification with their nation, including attachment to national symbols, pride in national achievements, and sense of belonging to the national community. Developed by Kosterman and Feshbach (1989), it distinguishes patriotism (pride in national accomplishments, willingness to serve) from nationalism (belief in national superiority, willingness to act against outsiders). The measure has become essential in comparative politics, examining how national identity shapes political behavior, attitudes toward immigration, support for international cooperation, and electoral choices.