Variation in testing procedures and goals can reduce time of assessment to 15–20 minutes for the assessment of a single primary index, or increase testing time to three or more hours for a complete assessment, including all primary, ancillary, and complementary indices. Five ancillary composite scores can be derived from various combinations of primary or primary and secondary subtests.įive complementary subtests yield three complementary composite scores to measure related cognitive abilities relevant to assessment and identification of specific learning disabilities, particularly dyslexia and dyscalculia. These indices represent a child's abilities in discrete cognitive domains. It also provides five primary index scores, namely Verbal Comprehension Index, Visual Spatial Index, Fluid Reasoning Index, Working Memory Index, and Processing Speed Index.
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It generates a Full Scale IQ (formerly known as an intelligence quotient or IQ score) that represents a child's general intellectual ability. The WISC-V takes 45 to 65 minutes to administer. The Fifth Edition (WISC-V Wechsler, 2014) is the most recent version.
The Wechsler Intelligence Scale for Children ( WISC) is an individually administered intelligence test for children between the ages of 6 and 16.