Developed by the same creator as the Wechsler Intelligence Scale for Adults (WAIS) and Wechsler Intelligence Scale for Children (WISC), the Wechsler Abbreviated Scale of Intelligence (WASI-II) is an abridged measure of cognitive intelligence. 

Administration of WASI-II

It will be administered by our psychologists.

There are 2 versions — a 4-subtest form and a 2-subtest form:

Ψ 4-subtest form: block design task, vocabulary task, matrix reasoning test and similarities test (approx. 30 minutes, completed in this order)
Ψ 2-subtest form: vocabulary and matrix reasoning test (approx. 15 minutes, completed in this order)

The block design task and matrix reasoning task form the Perceptual Reasoning Index (PRI), measuring nonverbal fluid abilities and visuomotor or co-ordination skills.

The vocabulary and similarities tests form the Verbal Intelligence Index (VCI), measuring the ability to use and apply learned knowledge and experience. The scores from all subsets are then combined to form a Full Score Intelligence Quotient (FSIQ) Score. 

Use of WASI-II

Due to the short testing duration, the WASI-II is useful when re-assessment is required after a comprehensive evaluation is done, or as a screening test to determine if in-depth evaluation is needed. This makes it a fast, reliable measure of intelligence when screening for intellectual disability or giftedness. It is also useful for spotting signs of Specific Learning Disorder, such as dyslexia and dysgraphia.

However, as the WASI-II is a rather brief test, it should not be used for legal, judicial or quasi-legal purposes. Therefore, we recommend taking this test alongside or as a complement to the WAIS and WISC. 

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Psychometric & IQ Testing