Wechsler Intelligence Scale for Children (WISC) refers to an individually administered measure of intelligence intended for children aged six (6) years to 16 years and 11 months. The WISC is designed to measure human intelligence as reflected in both verbal and non-verbal (performance) abilities. David Wechsler, the author of the test , believed that intelligence has a global quality that reflects a variety of measurable skills. He also thought that it should be considered in the context of the person's overall personality. The WISC is used in schools as part of placement evaluations for programs for gifted children and for children who are developmentally disabled.