Test identification
| Name of test | Wechsler Individual Achievement Test – Third Edition |
| Version | WIAT-III UK/WIAT-III UK-T |
| Previous version(s) | WIAT, WIAT-II, WIAT-II UK, WIAT-II UK-T (literacy only), WIAT-III, WIAT-III UK, WIAT-III UK-T (literacy only) |
| Subjects | Literacy, Maths |
| Summary | Assessment of reading, language and numerical attainment in one test (with multple subtests). |
Assessment screening
| Subscales | Listening comprehension, oral expression, early reading skills, word reading, pseudoword decoding, reading comprehension, oral reading fluency, alphabet writing fluency, spelling, sentence composition, essay composition, maths problem solving, numeracy, maths fluency (addition, subtraction, multiplication). |
| Authors | David Wechsler |
| Publisher | Pearson Clinical |
| Test source | https://www.pearsonclinical.co.uk/Psychology/ChildCognitionNeuropsychologyandLanguage/ChildAchievementMeasures/wiat-iii/wechsler-individual-achievement-test-third-uk-edition-wiat-iii-uk.aspx |
| Guidelines available? | Yes |
| Norm-referenced scores. | Yes |
| Age range | 4–25;11 years |
| Key Stage(s) applicable to | EY, KS1, KS2, KS3, KS4, KS5 |
| UK standardisation sample | No |
| Publication date | 2017 |
| Re-norming date | N/a |
Eligibility
| Note whether shortlisted, and reasons why not if relevant | No UK standardisation available |