www.cremieux.xyz/p/social-scientists-are-lazy
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years of education don't raise it.
This is contradicted by a large meta-analysis finding that additional schooling does raise intelligence test scores on average.
Full reasoning
A blanket claim that years of education do not raise intelligence is inconsistent with the peer-reviewed evidence. In a 2018 meta-analysis, Ritchie and Tucker-Drob synthesized 142 effect sizes from 42 data sets involving more than 600,000 participants and found "consistent evidence for beneficial effects of education on cognitive abilities of approximately 1 to 5 IQ points for an additional year of education."
Importantly, this was not just a simple correlation review. The meta-analysis focused on quasi-experimental designs intended to reduce selection bias, including studies controlling for prior intelligence, compulsory-schooling policy changes, and regression-discontinuity designs around school-entry cutoffs. The authors concluded that education appears to be a robust method for raising intelligence test scores.
So the statement that extra years of education do not raise intelligence is too categorical and is directly contradicted by this large quantitative review of causal and quasi-causal evidence.
1 source
- How Much Does Education Improve Intelligence? A Meta-Analysis
Across 142 effect sizes from 42 data sets involving over 600,000 participants, we found consistent evidence for beneficial effects of education on cognitive abilities of approximately 1 to 5 IQ points for an additional year of education. Education appears to be the most consistent, robust, and durable method yet to be identified for raising intelligence.