Wechsler Individual Achievement Test | Fourth Edition

WIAT-4
Wechsler Individual Achievement Test® | Fourth Edition (WIAT-4) is an individually administered achievement test for use in a variety of clinical, education, and research settings. Guidance on using this test in your telepractice.

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  • Kits

    Starter & complete kits, print & digital

    4 options

    From USD 259.67
  • Test forms reports

    Booklets, record forms, answer sheets, report usages & subscriptions

    6 options

    From USD 3.16
  • Support materials

    Manuals, stimulus books, replacement items & other materials

    9 options

    From USD 19.67
  • Training

    Onsite, virtual & on-demand trainings

    3 options

    From USD 234.57
  • All products

    All tests and materials offered for WIAT-4

    22 options

    From USD 3.16
- of 38 results
  • WIAT-4 Administration Manual (Print)
    A103000190563 Qualification Level B

    USD 176.07

    Estimated to ship:1-2 weeks
  • WIAT-4 Dyslexia Index Q-global Stimulus Book (Digital)
    A103000230970 Qualification Level B

    Once ordered, the digital asset is accessible by logging into Q-global and visiting the Q-global Resource Library. It is a view-only digital file.

    USD 128.00

  • WIAT-4 Dyslexia Index Complete Kit (Digital Plus Print)
    A103000230966 Qualification Level B

    Includes Stimulus Book (Digital), Audio Files (Digital), Q-global Manual (Digital), 25 Record Forms (Print); once ordered, the digital assets are accessible by logging into Q-global and visiting the Q-global Resource Library. The Stimulus Book and Manual are view-only digital files; the Audio Files are downloadable.

    USD 259.67

  • WIAT-4 Dyslexia Index Manual (Print)
    A103000193787 Qualification Level B

    USD 58.77

    Estimated to ship:3-4 weeks
  • WIAT-4 Complete Kit (Print)
    A103000190561 Qualification Level B

    Includes Administration Manual, Scoring Manual, Stimulus Book, Oral Reading Fluency Booklet, USB drive w/ Digital Resources (Technical Manual with Norms, Audio Files, Progress Monitoring Assistant), 25 Record Forms (Print), 25 Response Booklets (Print), and soft case

    USD 1,043.28

  • WIAT-4 DYSLEXIA INDEX Q-GLOBAL AUDIO FILES (DIGITAL)
    A103000230971 Qualification Level B

    WIAT-4 DYSLEXIA INDEX Q-GLOBAL AUDIO FILES (DIGITAL)

    USD 28.75

  • WIAT-4 Oral Reading Fluency Booklet (Print)
    A103000190565 Qualification Level B

    USD 19.67

  • WIAT-4 Dyslexia Index Q-global Manual (Digital)
    A103000193782 Qualification Level B

    Once ordered, the digital asset is accessible by logging into Q-global and visiting the Q-global Resource Library. It is a view-only digital file.

    USD 58.19

  • WIAT-4 LUGGAGE TAG
    A103000190571 Qualification Level B

    WIAT-4 LUGGAGE TAG

    USD 0.00

  • WIAT-4 Complete Kit (Print) / WIAT-4 Q-global Kit (Digital) with Q-global Scoring Subscription 1 Year (Digital)
    A103000190548 Qualification Level B

    Includes WIAT-4 Print Kit [Administration Manual (Print), Scoring Manual (Print), Stimulus Book (Print), Oral Reading Fluency Booklet (Print), USB drive w/ Digital Resources (Technical Manual with Norms, Audio Files, Progress Monitoring Assistant), 25 Record Forms (Print), 25 Response Booklets (Print), and soft case]; WIAT-4 Q-global Kit [Administration Manual (Digital), Stimulus Book (Digital), Oral Reading Fluency Booklet (Digital), Technical Manual w/ Norms (Digital), Scoring Manual (Digital)]; and 1-year Q-global scoring subscription.

    USD 1,108.49

  • WIAT-4 Dyslexia Index Record Forms Qty 25 (Print)
    A103000193785 Qualification Level B

    USD 71.76

    Estimated to ship:1-2 weeks
  • WIAT-4 Q-GLOBAL ADMINISTRATION MANUAL (DIGITAL)
    A103000190553 Qualification Level B

    WIAT-4 Q-GLOBAL ADMINISTRATION MANUAL (DIGITAL)

    USD 174.46

  • WIAT-4 Q-global Digital Kit
    A103000190552 Qualification Level B

    Includes Administration Manual (Digital), Scoring Manual (Digital), Technical Manual w/ Norms (Digital), Stimulus Book (Digital), Oral Reading Fluency Booklet (Digital), Progress Monitoring Assistant (Digital), Error Analysis Worksheets (Digital), Graphical Profiles (Digital), Analysis & Comparisons Forms (Digital), Subtest & Composite Score Computation Forms (Digital), Response Booklet (Digital), Audio Files

    USD 613.64

  • WIAT-4 Q-GLOBAL AUDIO FILES (DIGITAL)
    A103000190555 Qualification Level B

    WIAT-4 Q-GLOBAL AUDIO FILES (DIGITAL)

    USD 28.75

  • WIAT-4 Q-GLOBAL GRAPHICAL PROFILES (DIGITAL)
    A103000193778 Qualification Level B

    WIAT-4 Q-GLOBAL GRAPHICAL PROFILES (DIGITAL)

    USD 0.00

  • WIAT-4 Q-GLOBAL ANALYSIS & COMPARISON FORM (DIGITAL)
    A103000193779 Qualification Level B

    WIAT-4 Q-GLOBAL ANALYSIS & COMPARISON FORM (DIGITAL)

    USD 0.00

  • WIAT-4 Q-GLOBAL ERROR ANALYSIS WORKSHEETS (DIGITAL)
    A103000193777 Qualification Level B

    WIAT-4 Q-GLOBAL ERROR ANALYSIS WORKSHEETS (DIGITAL)

    USD 11.50

  • WIAT-4 Q-GLOBAL SUBTEST AND COMPOSITE SCORE COMPUTATION FORM (DIGITAL)
    A103000193780 Qualification Level B

    WIAT-4 Q-GLOBAL SUBTEST AND COMPOSITE SCORE COMPUTATION FORM (DIGITAL)

    USD 11.50

  • WIAT-4 Q-global Score Report Qty 1 (Digital)
    A103000190854 Qualification Level B

    USD 3.16

  • WIAT-4 Q-GLOBAL RESPONSE BOOKLET (DIGITAL)
    A103000232056 Qualification Level B

    WIAT-4 Q-GLOBAL RESPONSE BOOKLET (DIGITAL)

    USD 5.52

  • WIAT-4 Q-GLOBAL ORAL READING FLUENCY BOOKLET (DIGITAL)
    A103000193774 Qualification Level B

    WIAT-4 Q-GLOBAL ORAL READING FLUENCY BOOKLET (DIGITAL)

    USD 19.44

  • WIAT-4 Q-GLOBAL SCORING MANUAL (DIGITAL)
    A103000193775 Qualification Level B

    WIAT-4 Q-GLOBAL SCORING MANUAL (DIGITAL)

    USD 32.32

  • WIAT-4 Q-global Scoring 1-Year Subscription (Digital)
    A103000190549 Qualification Level B

    Includes unlimited scoring per user within an account

    USD 57.50

  • WIAT-4 Record Forms Qty 25 (Print) and WIAT-4 Response Booklets Qty 25 (Print)
    A103000190562 Qualification Level B

    USD 247.83

  • WIAT-4 Q-GLOBAL SUBSCRIPTION COMPONENT 1 YR (DIGITAL)
    A103000190558 Qualification Level B

    WIAT-4 Q-GLOBAL SUBSCRIPTION COMPONENT 1 YR (DIGITAL)

    USD 57.50

  • WIAT-4 Q-GLOBAL STIMULUS BOOK (DIGITAL)
    A103000190556 Qualification Level B

    WIAT-4 Q-GLOBAL STIMULUS BOOK (DIGITAL)

    USD 484.38

  • WIAT-4 Record Forms Qty 25 (Print)
    A103000190569 Qualification Level B

    USD 150.77

  • WIAT-4 Response Booklets Qty 25 (Print)
    A103000190570 Qualification Level B

    USD 123.97

  • WIAT-4 Q-GLOBAL TECHNICAL AND INTERPRETIVE MANUAL (DIGITAL)
    A103000190554 Qualification Level B

    WIAT-4 Q-GLOBAL TECHNICAL AND INTERPRETIVE MANUAL (DIGITAL)

    USD 206.77

  • WIAT-4 Stimulus Book (Print)
    A103000190564 Qualification Level B

    USD 479.32

    Estimated to ship:1-2 weeks
  • WIAT-4 WELCOME LETTER
    A103000190567 Qualification Level B

    WIAT-4 WELCOME LETTER

    USD 0.00

  • WIAT-4 Technical and Interpretive Manual (Print)
    A103000190568 Qualification Level B

    USD 208.73

    Estimated to ship:3-4 weeks
  • WIAT-4 Scoring Manual (Print)
    A103000190566 Qualification Level B

    USD 32.66

    Estimated to ship:1-2 weeks
  • WIAT-4 TRAINING LETTER
    A103000236957 Qualification Level A

    WIAT-4 TRAINING LETTER

    USD 0.00

  • WIAT-4 USB with Digital Resources
    A103000190557 Qualification Level B

    Includes Digital Technical Manual with Norms, Audio Files, Progress Monitoring Assistant

    USD 273.93

    Estimated to ship:1-2 weeks
  • WIAT-IV: Administration, Scoring & Basic Interpretation, US Edition · On Demand · 7.5 Hours
    A103000314689 Qualification Level C

    This on-demand training consists of seven modules and is approximately 7.5 hours in length. It provides detailed guidance for the administration, scoring, and interpretation of the WIAT-4. The final module of this curriculum includes how to score using the Q-global® platform. This session is targeted for all users of the WIAT-4 who want to increase their knowledge of the assessment via a self-paced module .

    USD 234.57

  • User Level B Accreditation (Academic Achievement) · Hybrid · 12 Hours
    A103000251817 Qualification Level A

    This hybrid, three-unit training is designed to support and upskill primary and secondary teachers, special educators, learning support staff and other professionals working in the Education industry to help screen and assess a student’s cognitive ability, academic achievement, cognitive skills, and social-emotional learning by providing access to User Level B assessments. This training will focus on the Wecshler Individual Achievement Test (WIAT). 

    Below are the dates available for this training. We'll be in contact to secure your preferred date.

    • 6 September 2024
    • 8 November 2024

    USD 783.61

    1-3 USD 783.61
    4-5 USD 705.25
    6+ USD 626.89
    Savings are estimated
  • User Level B Training (Academic Achievement) · On Demand
    A103000360921 Qualification Level A

    This fully on demand training is designed to support and upskill User Level A primary and secondary teachers, special educators, learning support staff and other professionals working in the Education industry to help screen and assess a student’s cognitive ability, academic achievement, cognitive skills, and social-emotional learning by providing access to User Level B assessments. This training focuses on the Wechsler Individual Achievement Test (WIAT).

    USD 781.89

Overview

Age range:

Individuals 4:0 - 50:11

Scores/Interpretation:

Fall, Winter, and Spring grade-based standard scores, age-based standard scores, percentile ranks, stanines, NCEs, age and grade equivalents, and growth scale values.

Qualification level:

B

Completion time:

Varies by grade level and number of subtests administered

Administration:

Paper-and-pencil, Q-interactive, and Q-global

Scoring options:
Q-interactive® Administration and Scoring, Q-global® Scoring & Reporting or Manual Scoring
Report Options:

Reports include Score Summary, subtest Comparisons, Achievement/Ability Comparisons; Parent report available

Uses:

Analyses of academic achievement; Supporting diagnoses of specific learning disabilities; Academic program placement; Intervention planning; Dyslexia screening/ evaluation

Telepractice:
Guidance on using this test in your telepractice

KTEA-3: Not all dyslexia screening tools are built the same -- KTEA-3 Dyslexia Index Brief provides the trifecta - screening, guidance, and support for ages 5-25. Learn more.

Interested in training for this assessment?

Please reach out via link below

Contact us

Product Details

Identify what they need to achieve even more.

Wechsler Individual Achievement Test®, Fourth Edition (WIAT®-4) expands upon the flexibility of the widely used achievement test. Suitable for use in a multitude of settings and available to a wide array of professionals, the newest edition of the WIAT has some exciting updates to help you identify what support they need to achieve more.


New Subtests, More Flexible Scoring

WIAT-4 features new subtests and expanded scoring capabilities, including composites for Phonological Processing, Orthographic Processing, Writing Fluency, and an Orthographic Processing Extended Composite*

The included Dyslexia Index Scores support efficient, reliable screening.

  • New: Phonemic Proficiency – measures speed and accuracy of phonological manipulation
  • New: Orthographic Fluency - measures speed of irregular word reading
  • New: Decoding Fluency - measures speed of pseudoword reading
  • New: Sentence Writing Fluency - measures speed of sentence composition
  • New: Orthographic Choice* - measures recognition spelling skills

*Q-interactive® only

Reports

Telepractice

Find out how to use this test in your telepractice.

Learn more

Resources

FAQs

Select a question below to see the response.

Audio Files

Why do the WIAT-4 audio files sometimes sound cut off or incomplete?

The audio files are complete; however, some multimedia applications trim slightly into a track to allow smooth transitions. We recommend using Quicktime, iTunes/Apple Music, or Windows Media Player for the cleanest, most reliable playback of the WIAT-4 audio files.

How are the Oral Discourse Comprehension audio files organized?

By default, the WIAT-4 audio files are organized into folders by subtest

Within the Oral Discourse Comprehension folder:

  • Files are organized in standard administration order when sorted alphabetically
  • Files that may be used for more than one item will be named accordingly (e.g., Item 08_09)

Within the Phonemic Proficiency folder:

  • Files are organized into subfolders, by section, to align with Phonemic Proficiency discontinuation rules
  • Files for the demonstration items appear first in each section's subfolder and are followed by the remaining items for that section listed in administration order

Essay Composition

Why does the Composite Structure section of the Record Form show the Essay Composition subtest for Grades 4-12+ but not for Grade 3?

Essay Composition can be administered at Grade 3, but this subtest is not included in the Written Expression composite until Grade 4.

What should the examiner do if the examinee cannot read the target word for one or more items on the Sentence Writing Fluency subtest?

The examiner is not permitted to read the target words for the examinee. However, examinees are permitted to skip an item, if needed, as indicated in the administration instructions.

How is WIAT-4 Essay Composition scored?

Option 1

The Essay Composition subtest can be scored automatically via Q-global or Q-interactive. Automated scoring is more consistent but just as reliable as hand scoring. Human scores and automated scores share a strong correlation.

Option 2

For paper and pencil customers without access to Q-global or Q-interactive, Essay Composition can be hand scored using the (correct minus incorrect word sequences) scoring rules provided in the manual.

How do I use automated scoring?

To use automated scoring, you will need internet access and a Q-global or Q-interactive account that includes WIAT-4. The following steps are followed to utilize automated scoring of Essay Composition:

  • Step 1: The examinee hand writes the essay in the Response Booklet;
  • Step 2: Within Q-global or Q-interactive, the examiner transcribes the essay by typing the essay exactly as it was written into the essay entry field;
  • Step 3: The essay is submitted and scored by Pearson's Intelligent Essay Assessor™ (IEA). Results are returned in seconds.

How do I transcribe letter reversals?

Letter reversals are not penalized in scoring, so you would type those letters in normally.

How do I transcribe illegible words?

Illegible words should be clarified following the guidelines provided in the manual.

Why do examinees hand write, instead of type, their essays?

Typing is a skill that not all examinees have acquired. Under timed conditions, examinees who type well can write more and score higher than examinees who cannot type well. In addition, many students, especially in the early grades, hand write essays in school, so this method has ecological validity.

Did the Essay Composition scoring rules change from WIAT-III to WIAT-4?

The WIAT-4 scoring rules are based on the (unchanged) Grammar & Mechanics score from the WIAT-III, which correlates strongly with overall writing quality and has high clinical sensitivity. The WIAT-III scores for Word Count and Content & Organization are not included in the WIAT-4; instead, a Content and Organization Qualitative Analysis is provided to assess these areas.

What is the Intelligent Essay Assessor (IEA)?

A patented technology based on over twenty years of research and development, IEA has been proven to score written essays as accurately as trained human scorers. IEA scores essays based on the traits included in the hand scoring rubric.

How does the IEA score an essay?

The IEA scoring engine assesses the grammar/syntax and the mechanics of the transcribed essay. When an examiner submits an essay for scoring, the IEA assesses features of the essay and compares the essay to a training set - a large database of training essays previously scored by human scorers. The IEA assigns a score based in part on the similarity of the essay to the training set.

Can the IEA score highly unusual or very brief essays?

Examiners should not attempt to score essays that are written in a language other than English, incomprehensible essays (e.g., essays with a high number of severely misspelled words), or essays that are completely off topic (i.e., the examinee did not follow the instructions). Essays must have a minimum word count of 30 to be scored; however, at least 40 words is recommended.

General

Is there a way to administer the WIAT-4 remotely in two separate locations?

Digital assets are available for remote administration of the WIAT-4. WIAT-4 telepractice guidance documents are provided here.

Are there special considerations for interpreting WIAT-4 results with students who struggled to learn virtually during the pandemic?

Guidance for score interpretation following a period of educational disruption is included in the WIAT-4 Technical & Interpretive manual, and on the Pearson telepractice website under Resources.

Will there be a validity study with the WIAT-4 and WPPSI-IV?

The data collection for the WIAT-4/WPPSI-IV validity study was put on hold due to the COVID-19 pandemic. Publication of this study is TBD.

Why are some subtests and composites omitted from the AAD table in the manual and the AAD section of the score report?

Scores are not reported when the achievement score equals or exceeds the ability scores.

Why can I conduct a PSW analysis but not an AAD analysis using the WIAT-4 and WPPSI-IV?

The PSW analysis uses the reliability of the measures, which are available for both tests. However, the AAD analyses use the correlations of the measures, which are not yet available.

Why is the AAD predicted-difference analysis in my WIAT-4 score report missing the comparison that I need?

The correlations between some of the WIAT-4 scores and the ability scores are too low to support the AAD predicted-difference analysis. Correlations lower than .40 are not reported to prevent prediction based on variables with a relatively weak relationship, which will lead to a strong regression toward the mean effect. To determine which correlations are available for use in the AAD predicted-difference analysis, refer to Table F.5 in the WIAT-4 Technical & Interpretive Manual.

Will there be a validity study with the WIAT-4 and the WAIS?

Yes, these data will publish with the upcoming WAIS-V. At the time of the WIAT-4 development, WAIS-V was also in development so the decision was made to complete the validity study using both new versions. The WIAT-4/WAIS-V validity study was planned for a release with both new measures at approximately the same time. However, WAIS-V data collection was paused due to the pandemic and became out of sync with the WIAT-4 release. More information about this validity study will be available as the WAIS-V development and release unfolds.

When calculating the Oral Reading Fluency raw score by hand, should a raw score with a decimal be rounded?

Yes, if the initial ORF raw score yields a decimal, round up or down as appropriate. For example, 152.39= 152 and 155.59 = 156.

When calculating the Oral Reading Fluency completion times, are milliseconds considered?

No, completion times are entered in seconds, disregarding any milliseconds. For example, a completion time of 97 seconds, 50 milliseconds is entered as 97 seconds.