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


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The WIAT-III is an achievement test for use in a variety of clinical, educational and research settings, including schools, clinics, private practices and residential treatment facilities.

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


  • Screen for dyslexia with stimulus materials you may already own with new Dyslexia Index Scores
  • Identify student academic abilities, make educational placement decisions, diagnose specific learning disability, design instructional objectives, and plan interventions.
  • Measure all eight areas of achievement specified by IDEA legislation.
  • Focus on reading goals and objectives with the Early Reading Skills subtests.
  • Evaluate patterns of strengths and weaknesses to identify learning disabilities.


  • Subtests include: Enhanced Listening Comprehension, Oral Expression, Written Expression subtests, Enhanced Reading Comprehension, Oral Reading (new), Math Fluency (new), and Early Reading Skills (new).
  • Dyslexia Index Scores can be used for screening, inclusion in a comprehensive assessment battery, and as a tool for research.