There is a favourable correlation between length of education and intelligence test scores. There are two possible interpretations for this correlation: either students who are more likely to be intelligent go on to complete more education, or intelligence rises with longer schooling.
Studies that estimated the associations between education and intelligence after adjusting for prior intelligence, studies that used changes in mandatory schooling policies as instrumental variables, and studies that used regression-discontinuity designs on school-entry age cutoffs.
We consistently observed beneficial impacts of schooling on cognitive capacities
Moderator analysis showed that the effects were present and lasted throughout life.
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