Abstract
Latino political behavior has long defied scholarly expectations, producing persistent political diversity that the field's dominant frameworks cannot explain because they were designed to predict collective unity, not individual-level variation. This study introduces the Bidimensional Acculturation Model (BAM) to political science, which treats heritage and American cultural attachments as independent dimensions and identifies four distinct acculturation orientations (culture-affirming, bicultural, demicultural, and assimilationists), and tests whether these orientations produce distinct political profiles using the 2006 Latino National Survey (N = 4,785). The findings confirm that acculturation orientations significantly differentiate ideology, partisanship, and immigration attitudes, with the strongest effects on immigration, and that biculturals, who represent 68% of the sample and are invisible under existing approaches, exhibit a distinct political profile. These results establish psychological acculturation as a theoretically necessary construct for understanding Latino political diversity and offer a framework applicable to immigrant-origin political behavior more broadly.
Supplementary materials
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Appendices
Description
The supplementary appendices provide full methodological and statistical documentation for the analyses reported in the manuscript. Appendix A details the operationalization of the Bidimensional Acculturation Model, including the five LNS survey items used in classification, comparative cluster analysis across five algorithms (K-Means, GMM, Hierarchical, Fuzzy C-Means, DBSCAN), validation metrics at k = 4, and the rationale for selecting the GMM EEV solution as the primary classification. Appendix B presents complete inferential results, including omnibus Kruskal-Wallis tests for all five political outcomes, all 30 pairwise Cliff's Delta comparisons with bootstrapped confidence intervals and Benjamini-Hochberg correction, within-orientation heterogeneity analyses, and dimension-level contrasts isolating the independent effects of heritage versus American cultural attachment.
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Supplementary weblinks
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Jessala A. Grijalva — Academic Website
Description
Personal academic website of Jessala A. Grijalva, Postdoctoral Fellow at the Institute for Latino Studies, University of Notre Dame. The site includes research on Latino political behavior, acculturation theory, herrenvolk democracy, and political methodology, along with working papers, replication materials, and information about ongoing projects including a book under consideration at Princeton University Press.
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