ABSTRACT
General intelligence (g) is a hypothetical molar component of intellect that is postulated to explain a series of relationships that collectively serve to triangulate the construct in a nomological network. Four relationships that provide empirical support for g are considered in this chapter. These are: (1) relationships between measures of intelligence obtained at different times over the lifespan of individuals; (2) relationships between intelligence and academic achievement; (3) relationships among different cognitive abilities; and (4) relationships between intelligence and relatively simple ``elementary information processing'' measures.
