“…Children with higher levels of intelligence are, for example, more adept at the kinds of tasks represented by simultaneously handling multiple sources of information (Spitz & Nadler, 1974), whereas mentally retarded persons tend to respond to fewer components of a complex stimulus and even to stop responding as the number of components increases (Burke, 1991, as cited in Sackett et al, 1999). Compared with children of average intellectual ability, gifted children excel at verbal–abstract tasks such as expressing similarities, detecting latent as opposed to explicit meanings, defining vocabulary words, and interpreting metaphorical language such as proverbs (Gallagher & Lucito, 1961; McClelland, 1982; Thompson & Finley, 1962). Executive control skills including working memory, cognitive flexibility, management of learning strategies, and the complex skills known as metacognition (Borkowski & Peck, 1986; Kanevsky, 1992) also fall into this category.…”