chapter  5
Social and Biological Origins of Abilities
Pages 32

One problem with the analyses described in Chapter 3 is that they attempt to define what the main human abilities are (through analyses of data that reveal the number and nature of primary mental abilities, second-order abilities and so on) they do not they do not explain how or why certain children develop certain levels of abilities. It is all very well producing evidence that people who perform above average on one type of task also tend to perform above average at other particular tasks, but why do some people perform better than others in the first place? What is it that makes people differ in their levels of g and other abilities?