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Motivated Reasoning Experiment×Partisan Identity Scale×
FieldPolitical PsychologyPolitical Psychology
FamilyProcess / pipelineProcess / pipeline
Year of origin20061960
OriginatorCharles Taber & Milton LodgeAngus Campbell et al.
TypeSurvey/lab experimentSelf-report
Seminal sourceTaber, C. S., & Lodge, M. (2006). Motivated skepticism in the evaluation of political beliefs. American Journal of Political Science, 50(3), 755-769. DOI ↗Campbell, A., Converse, P. E., Miller, W. E., & Stokes, D. E. (1960). The American voter. New York: John Wiley & Sons. link ↗
AliasesDirectional Motivated Reasoning Study, Biased Assimilation Experiment, Disconfirmation Bias ParadigmPAS, Party Identification, Partisan Strength
Related43
SummaryA motivated reasoning experiment tests whether people process political information to reach conclusions they are directionally motivated to hold rather than the most accurate ones. Building on Kunda's (1990) theory and crystallized by Taber and Lodge (2006), these designs expose partisans to attitude-congruent and incongruent arguments and measure biased assimilation, disconfirmation bias, attitude polarization, and selective exposure.The Partisan Identity Scale measures strength and direction of psychological attachment to a political party, encompassing both party preference and emotional party identification. Foundational since Campbell et al.'s American Voter (1960), the measure distinguishes party affiliation (which party one is registered with) from party identification (psychological identity with a party as a social group). Partisan identity is among the strongest predictors of voting behavior, political attitudes, and interpretation of political information, functioning as a 'perceptual filter' through which voters process news.
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ScholarGateCompare methods: Motivated Reasoning Experiment · Partisan Identity Scale. Retrieved 2026-06-24 from https://scholargate.app/en/compare