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!
Wechsler Individual Achievement Test | Third Edition
Activate to view the image in zoom mode

Wechsler Individual Achievement Test | Third Edition

WIAT-III

David Wechsler, PhD
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!
Choose from our formats
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:
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

Episode 4

"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.
Product Training Badge

Earn a Pearson Clinical Badge

Upon completion, you will receive a badge to showcase your skills.

Learn more

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.

 

 

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
WIAT-III UK Response Booklets

Support

Contact us


Existing Users

If you have an active Q-interactive license, WIAT-III will be automatically added to your account.

Sign in

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

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

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.

The score form is included in the new manuals - you may reproduce!

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.

Yes, you can use an existing KTEA-3 or WIAT-III administration with the new Dyslexia Index score manual.

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.

It's included in the new manual.

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.