In praise of Sandra Scarr
Given the impressive level of her empirical accomplishments, it should not be surprising that her theoretical accomplishments are also worth remembering.
Given the impressive level of her empirical accomplishments, it should not be surprising that her theoretical accomplishments are also worth remembering.
Nobody questions the existence of the Flynn effect, which is the tendency for average IQ scores in a population to increase over time. The effect has been found in every country where data exist (Flynn, 1987), and the phenomenon has now been studied for over 30 years.