Wechsler Individual Achievement Test - Third UK Edition (WIAT-III UK)


Key information

WIAT-IIl UK provides a reliable assessment of reading, language and numerical attainment in one test.


David Wechsler

Publication Year:


Age Range:

4 to 25 years 11 months


Individual - 45 to 90 minutes depending on the age of the examinee

Qualification Code:


Read the full product description


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Now Available - WIAT®-IIIUK via the Q-interactive® Assessment library

Use Q-interactive®, Pearson's interactive digital assessment platform, to create unique, client-centric batteries at both the instrument and subtest levels.

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WIAT®-IIIUK Paper-and-pencil format - Now Available!

The latest version of the most reliable and comprehensive assessment of reading, language and numerical attainment, Wechsler Individual Achievement Test - Third UK Edition (WIAT®-IIIUK) in traditional paper-and-pencil format is now available. For the first time WIAT®-IIIUK is also available digitally via Q-interactive giving you the choice to choose the format that suits your practice.


> Download the brochure (PDF)

The WIAT®-IIIUK is suitable for use in a variety of educational, clinical and research settings. Clinician’s can use WIAT®-IIIUK results to:

  • Identify the academic strengths and weaknesses of a student
  • Inform decisions regarding eligibility for educational services, educational placement, or diagnosis of a specific learning difficulty
  • Plan intervention
  • Measure progress 

Features and Benefits 


  • 16 subtests to evaluate listening, speaking, reading, writing, and mathematics skills
  • 3 new subtests - oral reading fluency, maths fluency and early reading skills

The following diagram shows all the WIAT®-IIIUK subtests, subtest components and composites (excluding the Total Achievement composite), and the links between them.


 > Download subtests description (PDF)


Eight composite scores:

  • Oral Language
  • Total Reading
  • Basic Reading
  • Reading Comprehension and Fluency
  • Written Expression
  • Mathematics
  • Maths Fluency
  • Total Achievement


  • Age-based standard scores
  • Percentile ranks
  • NCE’s
  • Stanines age equivalents

Psychometric Information

The WIAT®-IIIUK was standardised on a fully stratified sample of 744 children and young people, based on the UK 2011 Census. The WIAT®-IIIUK will be correlated with the Wechsler achievement tests of comparable ages.

Updates to support EHCP, DSA and AA requirements, and best practice:

  • New UK norms from 4:0 - 25:11 years
  • Upwards extension of UK norms to 25:11 years 
  • Standard scores for all subtests
  • Comparisons with Wechsler ability scores

Paper-and-pencil format

Now available, the traditional paper-and-pencil format, WIAT®-IIIUK Complete Kit includes: Examiner’s Manual, UK Scoring and Normative Manual, Stimulus Book, Scoring Workbook, Oral Reading Fluency Booklet, Pack of 25 x Record Forms, Pack of 25 x Response Booklets, Pseudoword Card, Word Card and Technical Manual/Audio USB.

Scoring and reporting: Hand scoring and new web-based scoring on Q-global will help to cut down on the time you spend on result's creation.

Digital format on Q-interactive®

Now available via Q-interactive WIAT®-IIIUK includes access to the same content as the WIAT®-IIIUK paper-and-pencil format, plus an expanding library of assessments including WISC®-VUK, WAIS®-IVUK, WMS®-IVUKKTEA™-3, NEPSY®-II, and D-KEFS™. Q-interactive walks you through administering a test, providing you with item-level administration directions, display of stimuli, capture of the child or young person's responses, and scoring.

Scoring and reporting: Real-time scoring and immediate access to results and reports makes interpreting test results easier and more time saving than ever before.

WIAT®-IIIUK and WISC®-VUK - Working together for a fuller picture

A linking sample comprising the WIAT®-III UK and WISC®-V UK has been collected, allowing you to conduct an Ability-Achievement Discrepancy Analysis with full confidence in the results. More information about the WISC®-VUK can be found on the product page.


Price list

Manual Administration Kits

WIAT-III UK Complete kit:

Includes examiner's manual, technical manual, stimulus book, scoring workbook, oral reading fluency book, word card, pseudo word card, downloadable audio, pack of 25 response booklets, and pack of 25 record forms.
ISBN: 9780749171971
£628.37 inc VAT


Record forms, pack of 25

Record forms, pack of 25
ISBN: 9780749171858
£108.00 inc VAT

Manual Administration Components

ISBN: 9780749167097
£98.00 inc VAT
Technical Manual/Audio UsB
ISBN: 9780749171957
£120.00 inc VAT
Oral Reading Fluency Booklet
ISBN: 9780749171889
£40.00 inc VAT
Stimulus Book
ISBN: 9780749171940
£100.00 inc VAT
Scoring Workbook
ISBN: 9780749171933
£40.00 inc VAT
UK Scoring Supplement
ISBN: 9780749171926
£80.00 inc VAT
Response Booklet, pack of 25
ISBN: 9780749171919
£72.00 inc VAT

Digital Scoring and Reporting

Q-Global Score Report
ISBN: 9780749172008
£2.40 inc VAT
WIAT-III UK Q-Global 1 Year Scoring Subscription
ISBN: 9780749171995
£38.40 inc VAT

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If your required component is not listed, please contact Customer Services on: info@pearsonclinical.co.uk or 0845 630 88 88 (Calls cost 3p per minute plus your phone company's access charge).

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