Douglas K. Detterman (born 1942)[1] is an American psychologist who researches intelligence and intellectual disability.
Among his achievements, Detterman founded the scientific journal Intelligence in 1977, and was editor in chief from 1977 to 2016 where it was taken over by Richard Haier.
He has also been a Fellow of the American Psychological Association from 1978 to 1998, a Fellow and charter member of the American Psychological Society from 1990 to 1998, and received a Mensa Research Award in 1991.
Detterman has argued that it is unfair to tell people they can accomplish anything if they just put enough practice into it, since they are limited by their abilities.
[4] Similarly, he has argued that cognitive training does not increase intelligence, but only one's ability to take tests, and notes the poor quality of studies done by commercial brain training companies (see also Lumosity#Effectiveness and legal history).