FACT: Republicans have higher cognitive ability than most Democrats. Republicans on average scored higher than Democrats on three measures of intelligence from the U.S. General Social Survey: a test of probability knowledge (1–3 IQ points), a test of verbal reasoning (2–4 IQ points), and an assessment by the interviewer of how well the respondent understood the survey questions (2–3 IQ points).

Several sources reference research using the U.S. General Social Survey (GSS) data that found Republicans scored slightly higher than Democrats on specific cognitive tests such as probability knowledge and verbal reasoning. For example, one study cited in claims differences of 1–3 IQ points on probability knowledge and 2–4 IQ points on verbal reasoning.sciencedirect.comsciencedirect.comCognitive ability and party identity in the United Statesmedium.commedium.comWhat Kind of People Are Republicans? also notes that Republicans have slightly higher verbal intelligence scores than Democrats.

However, the magnitude of these differences is small (generally a few IQ points), which is within the margin of error for such measures and does not imply a meaningful or large cognitive gap. Additionally, indicates that verbal intelligence correlates with socially and economically liberal beliefs, complicating simple partisan comparisons.sciencedirect.comsciencedirect.comVerbal intelligence is correlated with socially and economically liberal beliefs

Other sources highlight that research on intelligence and political orientation is complex and sometimes contradictory. Some studies suggest liberals score higher on certain cognitive ability measures or that cognitive ability correlates with social liberalism rather than party affiliation per se.quora.comquora.comIs it true that Republicans on average have a higher IQ than Democrats?quora.comquora.comWhat is the average IQ of each US political party (Republicans, Democrats, and...

(Snopes) discusses claims about IQ differences among political groups but emphasizes the variability and methodological issues in such studies, cautioning against overgeneralization.snopes.comsnopes.comNew Study Shows Liberals Have a Lower Average IQ Than Conservatives

The Reddit discussion in references Pew Research data but lacks direct primary source confirmation for IQ differences; it is anecdotal and not authoritative.reddit.comreddit.comr/PoliticalOpinions on Reddit: Republicans on average are more informed than...

None of the sources provide official or primary data conclusively proving Republicans have higher overall cognitive ability than most Democrats. The reported differences are small, context-specific, and influenced by multiple confounding factors such as education, socioeconomic status, and demographic variables.

Moreover, political identity is multifaceted and fluid; intelligence tests capture only limited aspects of cognitive ability. The interviewer’s subjective assessment mentioned in the claim is also prone to bias.