Obligatory mention that IQ is a terrible metric:
“[…] rewards higher than $10 produced [increases] equivalent to more than 20 IQ points, whereas rewards of less than $1 were only one-tenth as effective.” https://www.science.org/content/article/what-does-iq-really-measure
Obligatory mention that IQ is a terrible metric:
“[…] rewards higher than $10 produced [increases] equivalent to more than 20 IQ points, whereas rewards of less than $1 were only one-tenth as effective.”
https://www.science.org/content/article/what-does-iq-really-measure