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WASI Test (Wechsler Abbreviated Scale of Intelligence)

What is the WASI?

The Wechsler Abbreviated Scale of Intelligence (WASI Test) delivers an estimation of a student’s general intellectual ability by measuring the verbal, nonverbal, and general cognition of individuals from 6 to 89 years of age. Psychologist David Wechsler developed the WASI intelligence scale guided by his belief that intelligence was not one dimensional, but rather composed of a series of cognitive abilities. This test allows psychologists and other professionals to screen for intellectual giftedness or learning disabilities. The WASI is often used in various settings, such as educational, clinical, and research environments. It can be employed for screening purposes, as part of a comprehensive psychological evaluation, or for monitoring progress in response to interventions or treatments.

The newest version of the WASI, the WASI-II, was released in 2011. The WASI-II integrates the format and structure of the WASI while still offering updated content, better instructions, and greater clinical use. It gives test takers the option of taking four- and two-subtest versions of the test. This way testers can maintain better control of the time that the test takes to administer, as well as the depth of the assessment.

The Two-Subtest Form consists of vocabulary and matrix reasoning. This version of the exam produces the testers Full Scale Intelligence Quotient (FSIQ) which is a quantitative measure of ones complete cognitive capacity.  This version of the WASI can be administered in around 15 minutes.

In contrast, the Four-Subtest Form includes vocabulary, similarities, block design, and matrix reasoning. Due to the additional content areas, this test format is able to produce a richer profile of a test taker’s intellectual profile. The test taker is provided with an estimate of his or her general cognitive ability,  verbal comprehension index score (VCI), and nonverbal fluid ability. This test generally takes 30 minutes to administer.

Here’s a simple breakdown of the WASI:

  • Full Name: Wechsler Abbreviated Scale of Intelligence
  • Creator: David Wechsler
  • Latest Version: WASI- II
  • Publication Date (WASI II): 2011
  • Age Range: 6 to 89 years of age
  • Completion Time: Four-Subtest form, 30 minutes; two-subtest form, 15 minutes
  • Scoring Options: Manual Scoring

WASI-II Sections

Below are the categories of questions on the WASI. For sample questions that build the skills necessary for WASI success, take a look at our 100 free questions.

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Vocabulary (31 Items): The vocabulary subtest includes 3 picture items and 28 verbal items. For picture items, the tester names the object presented visually. For verbal items, the test taker will define words that are presented visually as well as orally. This section is designed to measure the breadth of the individual’s vocabulary, and overall understanding of words. On the updated version of the WASI-II, art was added for the picture items. In this subtest, individuals are asked to define a series of words presented to them. The Vocabulary subtest measures an individual’s verbal knowledge, verbal concept formation, and expressive language skills.

Block Design (13 Items): The block design subtest measures the ability to analyze and understand abstract visual items. A total of 9 items from the WASI were kept and 4 new items were added. While viewing a sample model or picture in the stimulus book, the test taker makes use of red and white block in order to re-create the design. The test taker must finish the reconstruction within a set time limit. In the Block Design subtest, individuals are asked to recreate a series of geometric designs using colored blocks. This subtest measures an individual’s spatial visualization, nonverbal concept formation, and perceptual organization skills.

Matrix Reasoning (30 Items): The individual will view an unfinished matrix or series and chooses the option that completes the matrix. Within this section, 23 items will remain from the WASI, while 7 new items were added. The Matrix Reasoning subtest presents individuals with a series of visual patterns, one of which contains a missing piece. The individual must choose the correct piece from a set of options to complete the pattern. This subtest assesses an individual’s nonverbal abstract reasoning, problem-solving, and perceptual organization skills.

Similarities (24 Items): For the picture items (items 1-3), the tester chooses the option that shares a specific characteristic with the target objects. For the verbal items (Items 4-24), the tester is shown two words that display common objects or concepts. It is the tester’s job to write how they are similar. The Similarities subtest requires individuals to describe how two seemingly different concepts or objects are alike. This subtest assesses abstract reasoning, verbal concept formation, and verbal comprehension skills.

Is it true that you cannot prepare for these types of tests?

This is false. Many psychologist do not like when children practice because they think children will be exposed to testing materials and that this may skew the results. Our test prep does not expose your child to testing materials but instead helps them understand the types of questions they will be asked.

How the WASI-II is Scored

The WASI-II is initially scored by converting the test takers raw score into a scale score. The scale score represents a common scale that allows for a quantitative comparison between a population of students. From there, the scale score is transformed into a composite score. For example, a composite score on the WASI-II could look like a numerical value of “90-109”. Traditionally, this score represents ‘average” performance. Additionally, on the tester’s scoring sheet, they will also likely see a score labeled percentile ranking (PR). This score demonstrates how the test taker scored against his or her peers. For example, if there is a 70 in this region then the individual will know that they scored better than 70 percent of the other test takers.

The WASI provides three types of scores:

  • T-scores: T-scores are calculated for each of the four subtests, with a mean of 50 and a standard deviation of 10.
  • Composite scores: Two composite scores are derived from the subtest scores: the Verbal IQ (VIQ), which is based on the Vocabulary and Similarities subtests, and the Performance IQ (PIQ), which is based on the Block Design and Matrix Reasoning subtests.
  • Full-Scale IQ (FSIQ): The FSIQ is derived from the combination of the VIQ and PIQ scores. The FSIQ provides an overall estimate of an individual’s general intellectual ability, with a mean of 100 and a standard deviation of 15.
  • Standard Score Ranges for the WASI

“Superior” Performance: 130 and beyond. Individuals who score in this range are considered to be in the superior or “gifted” range.

“Very High” Performance: 120-129. Individuals who score in this range as classified as performing at a high level.

“Bright Normal” Performance: 110-119.

“Average”: 90-109

“Low Average”: 80-89

“Borderline Mental Functioning”: 70-79

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15 Responses


What are the ranges and classifications for T-Scores on WASI-II?


I don’t understand these results – can someone please help interpret? Results are for approx 43 year old male terminally ill.
WASI-II Matrix Reasoning Results Raw score=5, T=23, impaired

I am trying to determine if this would be classified as incompetent.

Any help would be appreciated.


Vivian Julier

The qualitative description, “Borderline Intellectual Functioning” has been changed on the WISC-V (and other cognitive measures) to “Very Low” in the same score range. I personally would also not use the description “Bright Normal” as it is derogatory in my opinion, and actually not reflective or consistent with the other descriptors. Again, referring to the WISC-V, this score range is better captured simply by “High Average”.

need wasi questions

I need the wasi questions but there are only tutoring

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Best regards,



The range for this test is so large and the results for my kid did not come with any details. How does one human determine the overall score on this test? My child’s verbal Comp. The index was 116 and Perceptual Rsng Index 122. My child is 6years old, is this borderline? On what grounds? I’m seeking additional info because my child has been also identified as having a behavioral issue.

Hi Sandra,

Please email us at so we can take a better look at the results and help you understand what the results say.


Having a moderate brain injury in aircraft accident on 1March 2017 physically injured requiring craniotomy/cranioplasty and numerous weeks of rehabilitation. Now being evaluated for current condition compared to peers using the WASI II test and evaluation process


THe WAIS III test was given with a FSIQ score of -67 ( PIQ-59 and VIQ-77. ). Due to the disparity of the two scores an agency stated this test was invalid and not eligible for services for an intellectually disabled person who has Mild MR. Is there a means to determine why the disparity or what is the mean between PIQ and VIQ- Is the difference of the two valid?

Hi Anita, please email us at for more information on the WASI test scores.


What is the range of scores? Is there a top score? My son (age 6) got a 138 and the report says it’s in the 99th percentile. Does that mean he got all of the questions right?

Hi Marty,

First of all, congratulations to your son on an outstanding score!

The range of scores on the WASI-II is 40 – 160. A score in the 99th percentile means that he scored higher than 99% of children his age within the last two years on the test.

The WASI is typically used as a screener to determine eligibility for additional tests. With a membership to TestingMom, we can help identify which test(s) your son will take next and help prepare for those tests. Please reach out to our Parent Success Team at 877-609-6203 or if you have any questions.

All the best,


How do I get to take this test?


Please reach out to our Parent Success Team at 877-609-6203 or They will help you learn more about the WASI Test and how to find additional practice on our website.

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