Wechsler Individual Achievement Test | Third Edition
WIAT-III
Wechsler Individual Achievement Test® | Third Edition (WIAT®-III) is an individually administered achievement test for use in a variety of clinical, educational, and research settings. WIAT-4 is available for purchase!WIAT-III Mastery Accreditation · Live Online · 12 Hours
A103000251823
Qualification Level
Below are the dates available for this training. We'll be in contact to secure your preferred date.
- 15 May 2026: Full-day (9am - 5pm Sydney Time) and 22 May 2026: Half-day (9am - 1pm Sydney Time)
- 6 November 2026: Full-day (9am - 5pm Sydney Time) and 13 November 2026: Half-day (9am - 1pm Sydney Time)
- Age range:
- Individuals 4:0-50:11
- Publication date:
- 2009
- Qualification level:
- B
- Completion time:
- Varies by grade level and number of subtests administered
- Administration:
- Paper-and-pencil or online administration
- Scores/Interpretation:
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Fall, Winter, and Spring grade-based standard scores, age-based standard scores, percentile ranks, stanines, NCEs, age and grade equivalents.
- Scoring options:
- Q-interactive administration and Q-global® web-based scoring
- Telepractice:
- Guidance on using this test in your telepractice
"This report didn’t just explain my child, it explained our whole life.’ That’s the power of assessment."
Renee Testa, Psychologist
Listen to Renee's story
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.
Benefits
- 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.
Features
- 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.
- Improved scoring rules in response to scoring studies, theoretical reviews by expert researchers, and usability reviews by teachers and clinicians.
- Enhanced scoring software and interactive scoring guide in every kit.
- Updated norms for PreK through grade 12, and for ages 4:0–50:11; nationally standardized on 3,000 students and adults and features comprehensive normative information.
Earn a Pearson Clinical Badge
Upon completion, you will receive a badge to showcase your skills.
Sample Reports
Combination reports allow you to upgrade your WPPSI-IV or WIAT-III score report to include a pattern of strengths and weaknesses analysis, and an ability achievement discrepancy analysis of the combined results.
The following resources are available for WIAT-III.
- Pearson Clinical Assessment Solutions: A Dyslexia Toolkit
- Dyslexia Index Scores Flyer
- Assessing Writing Skills Using Correct-Incorrect Word Sequences
- Intervention Guide for LD Subtypes
- Quick Score Guide for WIAT-III Essay Composition
- Patterns of Strengths & Weaknesses Models for Identifying SLD (NASP 2010)
- WIAT-III Enhanced Content Modifications
Sample Reports
Combination reports allow you to upgrade your WPPSI-IV or WIAT-III score report to include a pattern of strengths and weaknesses analysis, and an ability–achievement discrepancy analysis of the combined results.
Technical Reports
Tests in the WIAT-III harness the processing capacities of Q-interactive to provide new, more dynamic, cognitively demanding tasks that are unable to be delivered and scored with fidelity in a traditional paper format.
Test Components
Required items for administering WIAT-III on Q-interactive:
| 9780749171919 |
Support |
Existing Users
If you have an active Q-interactive license, WIAT-III will be automatically added to your account.
Frequently asked questions follow. Click on a question to see the response.
Q & A from the KTEA-3 and WIAT-III Dyslexia Index scores webinars
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In print, in Q-global, and soon-to-be in Q-interactive!
- KTEA-3 Dyslexia Index Scores Manual (Manual Scoring) 015801524X
- KTEA-3 Dyslexia Index Scores Manual on Q-global 0150023189
- WIAT-III Dyslexia Index Scores Manual (Manual Scoring) 0158015258
- WIAT-III Dyslexia Index Scores Manual on Q-global 0150023197
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The original tables were first published in the Wiley Essentials of KTEA-3 and WIAT-III Assessment book, yes. However, these new manuals are expanded in content (with a wider age range in the case of WIAT-III), have the necessary forms, directly include scoring and significant interpretive information related to risk and recommendation language.
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The score form is included in the new manuals - you may reproduce!
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If you have the current KTEA-3 or WIAT-III complete kits, you have everything you need except the new Dyslexia Index score manual--choose print or Q-global version.
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Yes, you can use an existing KTEA-3 or WIAT-III administration with the new Dyslexia Index score manual.
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We are working on approvals for integrating the Dyslexia Index scores into the Q-global scoring and reporting, but that functionality is not available at this time.
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It's included in the new manual.
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Yes. It will provide a new score and that was not available before in the WIAT-III test. This score can be used on its own as a screener, or it can be used as part of the comprehensive evaluation with a full administration of KTEA-3 or WIAT-III.
