Pathogen Prevalence, Group Bias, and Collectivism in the Standard Cross-Cultural Sample
Abstract
It has been argued that people in areas with high pathogen loads will be more likely to avoid outsiders, to be biased in favor of in-groups, and to hold collectivist and conformist values. Cross-national studies have supported these predictions. In this paper we provide new pathogen codes for the 186 cultures of the Standard Cross-Cultural Sample and use them, together with existing pathogen and ethnographic data, to try to replicate these cross-national findings. In support of the theory, we found that cultures in high pathogen areas were more likely to socialize children toward collectivist values (obedience rather than self-reliance). There was some evidence that pathogens were associated with reduced adult dispersal. However, we found no evidence of an association between pathogens and our measures of group bias (in-group loyalty and xenophobia) or intergroup contact.
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In countries and cultures with historically higher parasite prevalence, people are less individualistic, exhibit lower openness, are more likely to conform, and more strongly endorse binding moral values.
“in countries and cultures characterized by historically higher prevalence of parasitic diseases, people are less individualistic, exhibit lower levels of dispositional openness to new things, are more likely to conform to majority opinion, and more strongly endorse “binding” moral values that emphasize group loyalty, obedience, and respect for authority [15], [16], [17], [18], [19].”
From Pathogens and Politics: Further Evidence That Parasite Prevalence Predicts Authoritarianism (2013) · cites this paper as [15]
The Cashdan and Steele measure of historical pathogen prevalence was internally reliable, with Cronbach's alpha = .81.
“This measure was internally reliable, Cronbach’s alpha = .81.”
From Pathogens and Politics: Further Evidence That Parasite Prevalence Predicts Authoritarianism (2013) · cites this paper as [15]
Cashdan and Steele's results provided important substantiation for the relationship between disease prevalence and collectivist values, especially adherence to group norms.
“their results provided important substantiation for the relationship between disease prevalence and collectivist values—especially those values pertaining to adherence to group norms.”
From Pathogens and Politics: Further Evidence That Parasite Prevalence Predicts Authoritarianism (2013) · cites this paper as [15]
The two parasite prevalence indices (Cashdan and Steele and Low) are highly correlated, r = .87 (p<.001).
“These two indices [15], [36] are highly correlated, r = .87 (p<.001).”
From Pathogens and Politics: Further Evidence That Parasite Prevalence Predicts Authoritarianism (2013) · cites this paper as [15]
Pathogen prevalence uniquely predicted 11 of the 12 individual variables comprising the authoritarian governance index.
“Results are summarized in Table 3, and reveal that pathogen prevalence uniquely predicted 11 of the 12 variables: Higher levels of pathogen prevalence were associated with ethnographic observations indicating more authoritarian systems of governance.”
From Pathogens and Politics: Further Evidence That Parasite Prevalence Predicts Authoritarianism (2013) · cites this paper as [15]
Both parasite stress measures were positive predictors of authoritarian governance (r's = .42 and .29, p's<.01).
“Both parasite stress measures were positive predictors of authoritarian governance (r's = .42 and .29, p's<.01).”
From Pathogens and Politics: Further Evidence That Parasite Prevalence Predicts Authoritarianism (2013) · cites this paper as [15]
In multiple regression including 3 control variables and Cashdan and Steele's pathogen prevalence, pathogen prevalence was a unique predictor of authoritarian governance (β = .47, p<.001).
“Results revealed that both pathogen prevalence and the threat of famine were unique predictors of authoritarian governance (β's = .47 and .36, respectively; p's<.001).”
From Pathogens and Politics: Further Evidence That Parasite Prevalence Predicts Authoritarianism (2013) · cites this paper as [15]
In an additional analysis aggregating society-level values within 6 world regions, the correlation between region-level composite measures of pathogen prevalence and authoritarian governance was r(6) = .67, p = .14.
“This correlation was strongly positive, r(6) = .67, p = .14.”
From Pathogens and Politics: Further Evidence That Parasite Prevalence Predicts Authoritarianism (2013) · cites this paper as [15]
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- Authors
- Cashdan, E., & Steele, M.
- Affiliations
- University of Utah (US)
- Corresponding author
- Cashdan, Elizabeth
- ORCID
- Cashdan, Elizabeth
- Venue
- Human Nature
- Published
- 2013-02-07
- Volume
- 24
- Issue
- 1
- Pages
- 59-75
- ISSN
- 1045-6767 (ISSN-L)
- 1936-4776
- OpenAlex
- W2123195182
- Semantic Scholar
- 2364aa5b26b204ccff74a33cdbe44197e098455d
- Cited by
- 141
- References
- 43
- Citations by year
- 2026: 3 · 2025: 6 · 2024: 7 · 2023: 16 · 2022: 38 · 2021: 18 · 2020: 8 · 2019: 6 · 2018: 8 · 2017: 6 · 2016: 1 · 2015: 8 · 2014: 11 · 2013: 5
- FWCI
- 12.47
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Human Nature (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Social Sciences › Psychology › Social Psychology › Cultural Differences and Values
- Social Sciences › Sociology and Political Science › Social and Intergroup Psychology
- Social Sciences › Psychology › Social Psychology › Death Anxiety and Social Exclusion
- Keywords
- pathogen prevalence, Standard Cross-Cultural Sample, collectivism, in-group favoritism, xenophobia, intergroup contact, adult dispersal, child socialization, obedience, self-reliance, cross-cultural replication
- MeSH terms
- Cross-Cultural Comparison, Disease, Epidemiology, Group Processes, Humans, Social Behavior, Social Conformity, Prevalence
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