“Lower cognitive ability is linked to stronger Christian nationalist views, even after accounting for education”

• A large meta-analysis of 63 studies (Zuckerman, Silberman & Hall, 2013, Personality and Social Psychology Review) found a reliable negative correlation between intelligence and religiosity (average r ≈ -0.20 to -0.25), strongest for religious belief rather than mere behavior; a 2020 follow-up with new samples confirmed the relation and reported it was not eliminated by controls for education and demographic covariates.
• Christian nationalism is empirically very strongly correlated with religious fundamentalism, biblical literalism and right-wing authoritarianism — constructs for which lower cognitive ability associations are among the better-replicated findings in political psychology.
• Hodson & Busseri (2012, Psychological Science) found lower general cognitive ability in childhood predicted greater right-wing/authoritarian attitudes and prejudice in adulthood, with the effect holding when socioeconomic status and education were statistically controlled — the specific 'net of education' pattern the claim asserts.
• Meta-analytic work on cognitive ability and right-wing ideological attitudes (Onraet et al., 2015) reports negative associations of roughly r = -.20 with authoritarianism/traditionalism, which are the attitudinal core of Christian nationalism scales.
• Analytic-thinking research (Pennycook and colleagues) shows that weaker performance on cognitive reflection tasks predicts stronger supernatural, religious and conspiratorial belief; Christian nationalism is in turn robustly linked to conspiracy belief and misinformation acceptance (Armaly, Buckley & Enders, 2022, Political Behavior).
• Population survey data are consistent in direction: PRRI/Brookings (2023) and Pew (2022) both find Christian nationalist adherents/sympathizers are disproportionately drawn from respondents without four-year college degrees, the demographic group with lower average scores on standard ability tests.

• I am not aware of a well-established, replicated study that directly measures individual cognitive ability (IQ, vocabulary/Wordsum, matrix reasoning) alongside a validated Christian nationalism scale and reports the association net of education. The claim is largely an extrapolation from adjacent literatures (religiosity, fundamentalism, authoritarianism), not a directly demonstrated finding for Christian nationalism as such.
• Educational attainment differences (the PRRI/Pew pattern) are not cognitive-ability measures; inferring ability from degree status is exactly the confound the claim says has been removed.
• Effect sizes in the parent literatures are small-to-modest (r ≈ -.15 to -.25), meaning enormous overlap between groups; 'lower cognitive ability is linked to stronger Christian nationalist views' describes a weak statistical tendency, not a characteristic of individuals, and many Christian nationalists are highly educated and high-ability (its most prominent intellectual advocates include lawyers, academics and theologians).
• Measures of 'cognitive ability' used in survey research are usually brief verbal/vocabulary tests that are themselves culturally loaded and correlated with region, rural residence, denomination and SES — plausible confounds with Christian nationalism that are rarely fully controlled.
• The intelligence–religiosity literature is contested: critics (e.g., Dutton, Daws & colleagues) argue the relationship reflects conformity to secular elite norms, sample composition (heavily U.S./student samples), or measurement artifacts rather than reasoning capacity per se.
• Causal direction and mediation are unresolved; even where the correlation exists, it may run through analytic cognitive style, social context, or socialization rather than general ability, and results from U.S. samples may not generalize.
• Christian nationalism scales (e.g., Whitehead & Perry's) measure policy attitudes about religion's public role; they are not pure measures of belief, and some critics argue the scales partly capture partisan identity, which has no consistent relationship to ability.

55/100 — the lab’s own confidence in the score above, not a second reading of the claim.

Personality and Social Psychology Review (SAGE) — Zuckerman, Silberman & Hall 2013journal · 88 · Psychological Science (SAGE) — Hodson & Busseri 2012journal · 82 · Political Behavior (Springer) — Armaly, Buckley & Enders 2022, Christian Nationalism and Political Violencejournal · 85 · PRRI / Brookings Institutionother · 80 · Pew Research Centerother · 90 · Cognition (Elsevier) — Pennycook et al., analytic cognitive style and religious beliefjournal · 80 · European Journal of Personality — Onraet et al. 2015 meta-analysis on cognitive ability and right-wing attitudesjournal · 78

• Indirectly supportive: Peer-reviewed psychology literature finds a negative association between intelligence/analytic cognition and religiosity or religious belief, which makes the claimed direction plausible, though this is not the same as Christian nationalism. See Zuckerman et al. meta-analysis and Gervais & Norenzayan in Science.
• Indirectly supportive: PRRI/Brookings and Pew surveys find Christian-nationalist or 'U.S. should be a Christian nation' views are more common in some groups with lower formal education, and education is often a covariate in Christian-nationalism research. That is consistent with, but does not prove, an education-independent cognitive-ability effect.
• The claim is modestly worded as 'linked to,' not 'caused by,' which fits the cross-sectional nature of most evidence in this area.

• I did not find, among the cited reliable sources, a direct peer-reviewed source establishing the exact claim that lower cognitive ability predicts stronger Christian-nationalist views after controlling for education. The best-cited evidence here is indirect: cognition-religiosity studies plus Christian-nationalism survey demographics.
• 'Cognitive ability' is stronger and more loaded than many actual measures used in social surveys, such as vocabulary, cognitive reflection, science knowledge, or analytic-thinking tasks. Those are imperfect proxies and should not be equated with global intelligence or worth.
• Education is not the same as cognitive ability, and controlling for education does not eliminate confounding by age, race, region, denomination, authoritarianism, partisan identity, media diet, or perceived cultural threat—all known correlates of Christian nationalism.
• Pew and PRRI data show Christian-nationalist sentiment is not confined to low-education groups; substantial support exists across education levels, and many respondents interpret 'Christian nation' culturally or historically rather than as a detailed nationalist ideology.

62/100 — the lab’s own confidence in the score above, not a second reading of the claim.

PRRI/Brookingsother · 86 · Pew Research Centerother · 92 · Sciencejournal · 94 · Personality and Social Psychology Reviewjournal · 92 · PRRIother · 85

• The claim matches the exact phrasing of recent science journalism reporting on peer-reviewed sociological and psychological research. Researchers investigating the predictors of Christian nationalism frequently use national survey data to find statistical correlations.
• Decades of psychological research consistently demonstrate an inverse correlation between cognitive ability (often measured by analytical thinking tasks, verbal intelligence, or cognitive reflection tests) and rigid, authoritarian, or fundamentalist ideologies.
• When researchers conduct multiple regression analyses on these survey results, they routinely control for variables like household income and educational attainment. The research shows that the correlation between lower cognitive ability and right-wing/nationalist beliefs remains statistically significant even independent of formal education, suggesting the link relates more closely to cognitive processing styles (e.g., intuitive versus analytical thinking) than merely a lack of schooling.

• Measuring 'cognitive ability' via survey proxies (like brief vocabulary quizzes or logic puzzles) is inherently limited and does not capture full human intelligence, leading some experts to critique the broader validity of such correlations.
• Christian nationalism is a complex social construct. Agreement with survey questions about Christian nationalism may be driven heavily by cultural identity, regional socialization, and perceived threats to group status, rather than cognitive deficits.
• Focusing heavily on cognitive ability risks over-pathologizing political and religious ideologies, downplaying the role that distinct cultural ecosystems and media environments play in shaping belief systems.

85/100 — the lab’s own confidence in the score above, not a second reading of the claim.

Psychological Sciencejournal · 90 · Cognitionjournal · 90 · Public Religion Research Instituteother · 85

• A 2026 peer-reviewed study by Samuel L. Perry, using multiple waves of the General Social Survey, reports that lower scores on the Wordsum vocabulary test are associated with stronger endorsement of Christian-nationalist indicators, including the belief that being Christian is important to being truly American and support for mandatory Christian prayer or Bible reading in public schools. The reported associations remain statistically significant after controlling for education and additional religious, political, and demographic characteristics.
• The study reportedly finds that the association persists across survey waves and several demographic subgroups, and is not limited to respondents without college education. This directly supports the claim as written, although the evidence is correlational and Wordsum is a measure of verbal ability or vocabulary knowledge rather than a complete measure of general cognitive ability.

• The principal evidence identified is one observational study, so it establishes association rather than causation. It does not show that lower cognitive ability causes Christian-nationalist views.
• Wordsum vocabulary scores can reflect educational quality, language background, age, cultural exposure, and test familiarity in addition to cognitive ability. Consequently, describing the result as a relationship with overall cognitive ability is broader than the measure directly warrants.
• Christian nationalism is measured through selected attitude questions rather than one universally accepted scale. Different definitions or measurement instruments could produce different results; one identified methodological paper specifically raises concerns about the psychometric properties of a Christian-nationalism scale.
• Available evidence also indicates that education itself is strongly associated with Christian-nationalist adherence. Although the reported study statistically controls for education, adjustment cannot rule out all forms of confounding or establish that the residual association is independent of other socioeconomic and cultural factors.

84/100 — the lab’s own confidence in the score above, not a second reading of the claim.

Wiley Online Library; Journal for the Scientific Study of Religionjournal · 92 · Wiley Online Library; Journal for the Scientific Study of Religionjournal · 92 · PsyPostnews · 70 · Public Religion Research Instituteother · 84 · Cambridge University Press; Politics and Religionjournal · 90

• U.S. survey analyses using vocabulary-test proxies for cognitive ability (e.g., GSS WORDSUM) typically show a negative association with Christian-nationalist attitude scales.
• The residual negative association often remains statistically detectable in OLS or similar models that already include years of education plus standard demographics.
• The pattern is consistent with the broader, replicated finding that cognitive-ability measures correlate modestly and negatively with religious fundamentalism and related ethnoreligious-political ideologies.

• Vocabulary tests are narrow, culturally loaded proxies, not full-scale IQ or general cognitive ability.
• Education and measured cognitive ability are substantially collinear, so any leftover coefficient can reflect remaining measurement error, regional/cultural confounds, personality (e.g., openness), or selection rather than a distinct cognitive effect.
• Results are correlational, largely U.S.-specific, and can shrink or lose significance under alternative operationalizations of Christian nationalism or additional controls.
• Effect sizes in this literature are typically small; media-style wording can imply a stronger or more deterministic link than the regressions support.

62/100 — the lab’s own confidence in the score above, not a second reading of the claim.

Personality and Social Psychology Reviewjournal · 88 · Sociology of Religionjournal · 90