One theoretical approach to intelligence suggests that every task requires a combination of a/an (also known as 'g') and that are specific to the task (also known as 's'). this theoretical approach is known as spearman's

general ability factor;specific abilities;Spearman's two factor theory.                                                      

Explanation:

Spearman has given his theory on intelligence referred to as spearman's two-factor theory. He believed that the basic components of intelligence are described by two factors that are several specific abilities (s) and the general ability factor (g).

The g factor exhibits the basics of general intelligence, through which all different form of intellectual abilities rises. He argues that the level of specific abilities can be predicted through the level of general abilities.