How to raise IQ? Education! (a new meta-analysis)

From experience to meaning...

This morning Stuart Ritchie shared a preprint of a new meta-analysis he made together with Elliot Tucker-Drob and the theme is very relevant in many of the present discussions about education: the link between IQ and education. An important insight from the conclusion:

…the results support the hypothesis that education has a causal effect on intelligence test scores. The effect of one additional year of education—contingent on study design, inclusion of moderators, and publication bias correction—was estimated from approximately one to five points on the standard IQ scale.

And this is also important:

The results reported here indicate strong, consistent evidence for effects of education on intelligence. Although the effects—on the order of a few IQ points for a year of education— might be considered small, at the societal level they are potentially of great consequence. A crucial next step will be to uncover the mechanisms of these educational effects…

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