Wechsler Individual Achievement Test (WIAT-III )

The Wechsler Individual Achievement Test (WIAT-III) is a comprehensive, individually administered test for assessing the achievement of children, adolescents, tertiary students and young adults who are aged four years to 19 years, 11 months or in preschool through to Year 12.

Skills assessed with WIAT-III

• The Oral Language score indicates how well a child performs on tasks measuring the ability to listen for details as well as verbal word fluency.
• The Total Reading score indicates how well a child performs on tasks that assess word recognition skills and reading comprehension abilities.
• The Basic Reading score indicates how well a child performs on reading tasks using both real and made-up words.
• The Reading Comprehension and Fluency score indicates how well a child performs on tasks requiring accuracy of reading and comprehension of texts.
• The Written Expression score indicates how well a child performs on tasks assessing basic skills such as letter formation and spelling as well as more complex skills such as written word fluency and essay composition.
• The Mathematics score indicates how well a child performs on tasks evaluating one’s ability to identify and write numbers and solve mathematics calculations, problem-solve mathematical worded questions and compute answers in a given timeframe.
• The Maths Fluency score indicates how well a child performs on timed tasks using addition, subtraction and multiplication assessing the ability to compute fluently.

The Total Achievement Score indicates overall academic functioning.

The WIAT-III is often requested by parents and school counsellors as the detailed results are invaluable for teachers developing Individual Learning Plans (ILPs) for the school setting. It is usually conducted in conjunction with the WISC-V for a comprehensive academic and cognitive assessment.

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