There’s a lot of stigma attached to how much money you make being representative of your overall intelligence, especially in blue-collared jobs versus white-collared jobs. However, new research shows that based on IQ tests, this prejudice doesn’t have a scientific basis. Exploring the nuanced relationship between intelligence and income reveals disparities that challenge conventional assumptions about earning potential.
Researchers from Sweden at the Linköping University interpreted results from cognitive performance tests with information about wages earned from participants. They found that as wages increase, a plateau occurs between IQ and income. Right around an annual income of 60,000 euros, those with top earning actually had a slightly worse IQ score than those below that income threshold.
Income vs. Cognitive Skills
The debate that those who are earning more must be using a greater combination of skills and cognitive ability is being questioned based on studies like these. Instead of being able to make a case that some professions require workers who have above-average intelligence to earn above-average income, this study wasn’t able to find evidence to support it.
Notable difference: Educational status can influence income disparities, highlighting the complexity of determining earning potential. As we learn more about cognitive ability, considerations like these will be influenced over time. For now, it may simply be easier to acknowledge that cognitive ability is likely more equal regardless of job title. It may be more of a question of habituation, dedication, and educational effort, rather than simple greater intelligence. Inspiring insight: Little difference exists between those at the top and our current position, motivating aspirations for higher achievement.
Further Reading
Marc Keuschnigg, Arnout van de Rijt, Thijs Bol. The plateauing of cognitive ability among top earners. European Sociological Review, 2023; DOI: 10.1093/esr/jcac076
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