The Nature of Intelligence

Evolutionary psychology and behavioural genetics are two successful and important fields in the study of human behaviour, but practitioners in these subjects have different conceptions of the nature of human intelligence. Evolutionary psychologists dispute the existence of general intelligence and emphasise the differences among species. They argue that natural and sexual selection would be expected to produce intelligences that are specialised for particular domains, as encountered by particular species. Behavioural geneticists consider general intelligence to be the most fundamental aspect of intelligence and concentrate on the differences between individuals of the sam…