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	Post-Materialism Index	Scala dell'Identità Nazionale
Campo	Psicologia politica	Psicologia politica
Famiglia	Process / pipeline	Process / pipeline
Anno di origine	1971	1989
Ideatore	Ronald Inglehart	Richard Kosterman & Seymour Feshbach
Tipo	Ranked-priorities value index	Self-report
Fonte seminale	Inglehart, R. (1971). The silent revolution in Europe: Intergenerational change in post-industrial societies. American Political Science Review, 65(4), 991-1017.	Kosterman, R., & Feshbach, S. (1989). Toward a measure of patriotic and nationalistic attitudes. Political Psychology, 10(2), 257-274.
Alias	Inglehart Index, Materialist-Postmaterialist Index, Four-Item Values Index	NIS, National Attachment Scale, Patriotism Scale
Correlati	4	3
Sintesi	The Post-Materialism Index, developed by Ronald Inglehart (1971), classifies individuals as materialist, postmaterialist, or mixed based on the priority they assign to physical and economic security versus self-expression, belonging, and quality of life. It operationalizes Inglehart's silent-revolution thesis that prosperity and security in postwar democracies caused an intergenerational shift from materialist to postmaterialist value priorities.	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.