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

Brief Summary

Wechsler Individual Achievement Test - Third UK Edition (WIAT®-IIIUK) is the latest version of the most reliable and comprehensive assessment of reading, language and numerical attainment. 

Available Formats

Choose from two administration options:

Paper format (Paper Manuals and Record Forms)
Digital format (under our Q-interactive® Standard Licence)


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  

> Download the brochure (PDF, 1.33 MB)

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 

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
  • Download the SASC SpLD Assessment Standards Committee - "Comparison of the WIAT-II UK to the WIAT-IIIUK" 

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.

Test Format

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

New Digital Options for WIAT®-IIIUK

The WIAT®-IIIUK offers two efficient and easy-to-use, digital options for test administration, scoring and reporting.

qinteractive-logoOption 1: Q-interactive – Our iPad device-based system for administration, scoring and reporting

Q-interactive delivers the world’s most advanced assessment tools you can take with you anywhere. It enables you to administer interactive assessments with an intuitive, portable system that uses two iPads connected to each other via Bluetooth.

The WIAT®-IIIUK on Q-interactive is available when you purchase a Standard Q-interactive licence*.

*PLEASE NOTE: Registered users with a qualification code of CL1 are eligible to purchase assessments from the Standard Q-interactive licence. To view the list of available assessments and to place your order please click here.

To use WIAT®-IIIUK on Q-interactive you will also need to order an additional item - WIAT-III Response Booklet (9780749171919) £60.00 (£72.00 inc VAT) - this can be purchased below or you can also purchase it directly from Pearson Clinical Customer Service on orders@pearsonclinical.co.uk or Tel: 0345 630 8888.

Learn more about Q-interactive

 Request a Q-interactive Demo

QGlobalSOption 2: Q-global – Our web-based system for scoring and reporting paper administrations

Q-global is our secure and affordable web-based scoring and reporting system that allows you to enter results from paper-and-pencil tests to generate scores and reports. It houses the industry’s gold standard assessment tools and is accessible from any computer connected to the Internet.

Learn more about Q-global





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
£650.16 inc VAT


Record forms, pack of 25

Record forms, pack of 25
ISBN: 9780749171858
£111.60 inc VAT

Manual Administration Components

ISBN: 9780749167097
£101.00 inc VAT
Technical Manual/Audio UsB
ISBN: 9780749171957
£123.60 inc VAT
Oral Reading Fluency Booklet
ISBN: 9780749171889
£41.00 inc VAT
Stimulus Book
ISBN: 9780749171940
£103.00 inc VAT
Scoring Workbook
ISBN: 9780749171933
£41.00 inc VAT
UK Scoring Supplement
ISBN: 9780749171926
£82.00 inc VAT
Response Booklet, pack of 25
ISBN: 9780749171919
£74.40 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

Change the quantities of your desired products, then click "Add to basket". If your required component is not listed, please contact Customer Services on: info@pearsonclinical.co.uk or 0345 630 88 88.

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