Visual Spatial Index
A score derived from the administration of selected subtests from the fifth edition of Wechsler Intelligence Scale for Children (WISC-V) and the fourth edition of Wechsler Preschool and Primary Scale of Intelligence (WPPSI-IV). The Visual Spatial Index (VSI) provides a measure of integration and synthesis of visual spatial relationships, visual attentiveness to detail, and visual-motor integration.
Wechsler Intelligence Scales (WIS): The WPPSI and WISC are two of the most widely used tests to assess general intellectual ability in children aged 2–7 (WPPSI) and children aged 6–16 years (WISC). Since the original development of these scales (WISC, 1949; WPPSI, 1967), both tests have been revised on several occasions. The most recent revisions were published in 2012 (WPPSI-IV) and 2014 (WISC-V).
History: Originally, one of the most prominent features of the WIS was the derivation and interpretation of IQ scores. Using this framework, the Full Scale IQ score...
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