Verbal Comprehension Index
VCI; Verbal comprehension scale (WAIS-IV)
A score derived from administration of selected subtests from the third and fourth edition Wechsler Adult Intelligence Scale (WAIS) and Wechsler Intelligence Scale for Children (WISC) and the fourth edition of the Wechsler Preschool and Primary Scale of Intelligence (WPPSI). The Verbal Comprehension Index (VCI) is designed to provide a measure of verbal acquired knowledge and verbal reasoning.
Wechsler Intelligence Scales (WIS)
The WIS family of tests are some of the most widely used test batteries to assess general intellectual ability in adults aged 16 years or older (Wechsler Adult Intelligence Scale; WAIS), children aged 6–16 years (Wechsler Intelligence Scale for Children; WISC), and children aged 2–7 years (Wechsler Preschool and Primary Scale of Intelligence; WPPSI). Since the original development of these tests (WAIS, 1955; WISC, 1949; WPPSI, 1967), all three batteries have been revised on several...