Compara mètodes

	Post-Materialism Index	Escala de Participació Política
Camp	Psicologia política	Psicologia política
Família	Process / pipeline	Process / pipeline
Any d'origen	1971	1995
Autor original	Ronald Inglehart	Sidney Verba, Kay Lehman Schlozman, Henry Brady
Tipus	Ranked-priorities value index	Self-report
Font seminal	Inglehart, R. (1971). The silent revolution in Europe: Intergenerational change in post-industrial societies. American Political Science Review, 65(4), 991-1017.	Verba, S., Schlozman, K. L., & Brady, H. E. (1995). Voice and equality: Civic voluntarism in American politics. Cambridge, MA: Harvard University Press.
Àlies	Inglehart Index, Materialist-Postmaterialist Index, Four-Item Values Index	PPCS, Civic Participation Measure, Political Activity Scale
Relacionats	4	3
Resum	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 Political Participation Scale measures engagement in civic and political activities, encompassing voting, campaign involvement, contacting officials, organizational membership, community volunteering, and protest activity. Developed by Verba, Schlozman, and Brady (1995), the measure captures both conventional participation (voting, contacting representatives) and unconventional participation (protest, civil disobedience). It addresses fundamental questions in political science: Why do some citizens engage while others withdraw? How do structural resources (time, money, education) and psychological factors (efficacy, interest) drive participation?