Wechsler Individual Achievement Test®-Third Edition
Overview: Updated achievement test for use in a variety of clinical, educational, and research settings.
Age Range: Individuals 4:0-50:11
RTI Tiers: RTI Levels 2 and 3
Administration: Paper-and-pencil or online administration
Completion Time: Varies by grade level and number of subtests administered
Fall, Winter, and Spring grade-based standard scores, age-based standard scores, percentile ranks, stanines, NCEs, age and grade equivalents.
Scoring Options: Q-interactive web-based administration and Q-global™ web-based scoring
Publication Date: 2009
Dyslexia Index Scores for the WIAT-III provide a simple way to screen for dyslexia with stimulus materials you may already own. Each test has its own data and scores for your convenience. The Dyslexia Index Scores can be used for screening, inclusion in a comprehensive assessment battery, and as a tool for research.
The WIAT-III is suitable for use in a variety of clinical, educational, and research settings, including schools, clinics, private practices, and residential treatment facilities. Use WIAT-III results to:
- Identify the academic strengths and weaknesses of a student
- Inform decisions regarding eligibility for educational services, educational placement, or diagnosis of a specific learning disability
- Design instructional objectives and plan interventions
Features & Benefits
With a total of 16 subtests, WIAT-III offers:
- Three new subtests: Oral Reading, Math Fluency and Early Reading Skills
- Enriched Listening Comprehension, Oral Expression, and Written Expression subtests
- Enhanced Reading Comprehension subtest
- Improved scoring rules that are featured 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
Content & Administration
- Measure all eight areas of achievement specified by IDEA legislation as important for identifying and classifying learning disabilities
- Focus on reading goals and objectives with the Early Reading Skills subtests
- Evaluate patterns of strengths and weaknesses to identify learning disabilities
The WIAT-III was nationally standardized on 3,000 students and adults and features comprehensive normative information.
The WIAT-III was correlated with the following ability measures:
- Wechsler Preschool and Primary Scale of Intelligence, Third Edition (WPPSI-III; Wechsler, 2002)
- Wechsler Preschool and Primary Scale of Intelligence, Fourth Edition (WPPSI-IV; Wechsler, 2012) - Study included in the WPPSI-IV Technical and Interpretive Manual
- Wechsler Intelligence Scale for Children, Fourth Edition (WISC-IV; Wechsler, 2003)
- Wechsler Intelligence Scale for Children, Fifth Edition (WISC-V; Wechsler, 2014) - Study included in the WISC-V Technical and Interpretive Manual
- Wechsler Adult Intelligence Scale, Fourth Edition (WAIS-IV; Wechsler, 2008)
- Wechsler Nonverbal Scale of Ability (WNV; Wechsler & Naglieri, 2006)
- Differential Ability Scales, Second Edition (DAS-II; Elliott, 2007)
WIAT-III Score Report
WPPSI–IV / WIAT-III Combination Reports
This combination report allows 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.
Two options for scoring and reporting the WIAT-III are now available on Q-global.
The first option is to pay per-report. Customers who administer the WIAT-III only a few times each year, or those who want the flexibility to pay only as the assessment is used, may prefer this option.
The second option is to select an "unlimited use" subscription, where one user of the WIAT-III gets unlimited scoring and reporting for one, three, or five years depending on the selected term of the subscription. This may be a better option for customers who administer the WIAT-III several times each year—and don't want to worry about keeping track of their report expenses.
Scoring and/or Reporting Options
Q-global™ Web-based Administration, Scoring, and Reporting – Enables you to quickly assess and efficiently organize examinee information, generate scores, and produce accurate comprehensive reports all via the Web.
WIAT-III on Q-global also provides:
- Enhanced skill analysis for core subtests at item level and sub-item level
- Intervention goal statements for core subtests to assist with IEP goals and to help develop planning for intervention
- Annual goals and short-term objectives for problem areas based on specific abilities, strengths, and weaknesses
- Research-supported alternatives for determining severe learning disability and non-responders within an RTI environment
- Parent Report, with a description of each subtest, as well as information to help the parent understand the WIAT-III scores
For a description of subtests and composites, click here.
Q-global Unlimited-use Scoring Subscriptions
Two pricing options are now available for scoring and reporting on Q-global. In addition to the current per-report price, there is now an unlimited-use scoring and reporting subscription available in one-, three-, and five-year terms.
Important note: Each subscription is per user for the WIAT-III only and will begin on the date of order processing unless otherwise requested.
Quick Score Guide for WIAT-III Essay Composition (PDF - 507KB)
WIAT®-III Wechsler Individual Achievement Test®–Third Edition: An Introduction
This pre-recorded 20-30 minute session allows you to learn at your leisure. All you need is access to the Internet and the sound enabled on your computer. Please keep in mind that the session may take a few minutes to load.
This session provides you with essential information regarding the features of the WIAT-III.
Unfolding Origami: Considering Differential Diagnoses for Dyslexia Evaluations
Presenter: Adam Scheller, PhD and Kristen Breaux, PhD
The course "Unfolding Origami: Considering Differential Diagnoses for Dyslexia Evaluations" will provide participants with a framework for conducting a thorough evaluation of Dyslexia. The focus is given to common characteristics of Dyslexia, common co-morbidities, and suggestions for how to unravel the diagnostic puzzle.
- About the Presenter, Financial and Non-Financial, Disclosure, and CEUs Eligibility Information
- Webinar/Workshop Evaluation Forms
Date: Dec 07, 2018
KTEA™-3 and WIAT®-III Dyslexia Index Scores: The What's, Why's, and How's
Presenter: Adam Scheller, PhD
With mounting regulatory pressure on school districts to implement an identification plan for students with dyslexia, there comes an increased need to have diagnostic tools that are both theoretically and psychometrically sound. Schools and clinicians need tools that allow high risk decisions to be made with a high degree of confidence. Breaux & Lichtenberger's (2016) work on The Dyslexia Index Scores for WIAT-III and KTEA-III provide us with just such tools. Pearson invites you to attend this 30 minute webinar on the nuts, bolts, and everything in between with regard to the Dyslexia Index Scores. Conducted by Pearson's Dr. Adam Scheller, this ""how to, what, and why"" session will provide you with the information you'll need to make a decision about adding these tools to your Dyslexia assessment toolkit.
Also, please watch for information on upcoming related sessions in the Dyslexia assessment series. Dr. Scheller will conduct a session for Dyslexia Case Study Analysis on 11/8/18; and we will hold a joint session on 12/7/18 with Drs. Kristina Breaux and Adam Scheller on The Analysis of Differential Diagnoses in Dyslexia. Attendees of the webinars on 11/8/18 and 12/7/18 will have the opportunity to earn NASP CPDs and/or APA CEs.
Date: Oct 12, 2018
Application of Cognitive Hypothesis Testing Using PSW Analysis
Presenter: Adam Scheller, Ph.D., Senior Educational Consultant with Pearson Clinical Assessment
School districts across the country have adopted new and modified old(er) special education evaluation processes in line with the requirements outlined in IDEIA 2004. Since this revised legislation opened the door for schools to use several different means to qualify students with special education needs, we have witnessed an explosion of RTI programs and a subsequent decline in discrepancy-model usage. However, one area included in the law has received less fanfare, the process of analysing the concordance (and thus discordance) between related cognitive and academic processes. During this one-hour webinar Dr. Scheller will review this process of cognitive hypothesis testing by taking an in-depth look at how to apply widely used assessments such as the WISC-V, KTEA-3, and WIAT-III. Dr. Scheller’s goal in this one-hour webinar will be to help take clinicians to a level of detail and accuracy when forming and testing hypotheses about a child’s patterns of thinking and learning.
Date: May 20, 2016
WIAT-III: Scoring the Sentence Composition Subtest
Presenter: Adam Scheller, PhD
The Wechsler Individual Achievement Test–Third Edition (WIAT-III), an individually administered measure of oral language, reading, written language, and mathematics, is used in schools, clinics, private practices, and residential treatment facilities. This webinar will focus on one component of WIAT-III – the Sentence Composition subtest. During the hour-and-a-half long presentation, the presenter will describe and demonstrate the criteria used to score the two components of Sentence Composition. Participants will be able to view sample responses to evaluate semantics, grammar and mechanics.
Date: Dec 19, 2011
Overview of the Wechsler Individual Achievement Test-Third Edition® (WIAT-III)
Presenter: Gloria Maccow
The Wechsler Individual Achievement Test–Third Edition (WIAT-III) is an individually administered measure of oral language, reading, written language, and mathematics. The WIAT-III is used in a variety of clinical, educational, and research settings, including schools, clinics, private practices, and residential treatment facilities.
During this hour-and-a-half long webinar, the presenter will describe administration and scoring of the WIAT-III subtests and interpretation of WIAT-III data.
Date: Sep 08, 2011
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
Can I attend this webinar?
Can I access the WIAT-III or KTEA-3 Dyslexia Index scores from Q-interactive?
Soon! They are ready for the next release on Q-interactive, which should be within the month.
Where do I access these Dyslexia Index scores?
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
Is the information in these new manuals similar to the Essentials book?
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.
Is the score form included when I order protocols?
The score form is included in the new manuals--you may reproduce!
If we use either the KTEA-3 or the WIAT-III comprehensive tests now, can we just use the relevant subtests needed for these scores, or do we need other content?
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.
Can I use the raw data from the Q-interactive administration to score using one of these new manuals?
Yes, you can use an existing KTEA-3 or WIAT-III administration with the new Dyslexia Index score manual.
Will Q-global score this currently?
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.
How do you get the computation form?
It's included in the new manual.
Will the WIAT-III Dyslexia Index score give us a different score than typical scoring on the WIAT-III?
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.
WIAT-III on Q-interactive at a Glance:
|Available With||Subtest Pricing||Scoring and Reporting||Materials Needed|
|Standard, Academic, Classroom, & Experiential Licenses||Score Report
|View Pricing & Ordering and open the Q-interactive section for Materials|
*Cost per usage between $1.00 and $1.50 depending on volume discounts
Benefits of WIAT-III on Q-interactive
- Access the full complement of WIAT-III subtests with the tap of a button.
- Create custom batteries by combining subtests from the WIAT-III with ability measures such as the WISC-V.
- Engage children by displaying stimuli on the iPad
- Standardize administration with automated basal and ceiling rules.
- Automatically generate score reports, including ability-achievement discrepancy and patterns of strengths and weaknesses analyses with the WISC-V and other cognitive tests.
- Obtain scaled scores immediately after finishing a subtest, to increase speed and accuracy.
- Save time by having skills analysis automatically calculated by the system.
How Can I Buy WIAT-III on Q-interactive?
Current Q-interactive customers:
If you want to add the WIAT-III to your account, visit our online order form and select the "Add Test(s) to Existing Account" option. You may also call Customer Support at 1-800-627-7271.