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By Inderbir Kaur Sandhu, Ph.D

Q: What IQ do you recommend giving a 7-2 year old first grade student in the public school system. The school wants cognitive testing and I am unsure of whether to give the WNV or WISC-V using the IPAD feature?? Thanks for your time!

A: The Wechsler Nonverbal Scale of Ability (WNV) is a nonverbal measure of ability for individuals for whom English is not their first language, or have other language considerations (e.g., hearing impaired, expressive language disorder, receptive language disorder etc. ), and gifted individuals from linguistically diverse populations. It is particularly valuable for use in schools with individuals from multiple language backgrounds.

The WISC-V is the most current version of the Wechsler's Intelligence Test series, an updated version of the WISC-IV. It takes a shorter time - 48–65 minutes to administer and generates a Full Scale IQ, which represents a child's general intellectual ability. It also provides five primary index scores (i.e., Verbal Comprehension Index, Visual Spatial Index, Fluid Reasoning Index, Working Memory Index, and Processing Speed Index) that represent a child's abilities in more discrete cognitive domains. Five ancillary composite scores can be derived from various combinations of primary or primary and secondary subtests. Five complementary subtests yield three complementary composite scores to measure related cognitive abilities relevant to assessment and identification of learning problems.

The WNV and the WISC are clearly different tests for different purposes. I believe the WISC-V would be more suitable for cognitive testing. Do speak to the school if your child has a verbal concern or is non-English speaking. Good luck!


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