Wechsler Individual Achievement Test®–Third Edition (WIAT®–III)

Updated achievement test for use in a variety of clinical, educational, and research settings.

At a Glance:

  • Administration: Paper-and-Pencil

    Completion Time: Varies by grade level and number of subtests administered

  • Scores: Fall, Winter, and Spring grade-based standard scores, age-based standard scores, percentile ranks, stanines, NCEs, age and grade equivalents.

    Scoring Options: Scoring Assistant™ software or hand scoring

  • Qualification level: B,Q2-Level
  • Publication Date: 2009
  • Ages / Grades: Individuals 4:0-50:11

Product Summary

Overview

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

Psychometric Information


The WIAT-III was nationally standardized on 3,000 students and adults and features comprehensive normative information.

A subset of the WIAT-III standardization sample administered the following ability measures: The Wechsler Preschool and Primary Scale of Intelligence, Third Edition (WPPSI-III; Wechsler, 2002), the Wechsler Intelligence Scale for Children, Fourth Edition (WISC-IV; Wechsler, 2003), the Wechsler Adult Intelligence Scale, Fourth Edition (WAIS-IV; Wechsler, 2008), the Wechsler Nonverbal Scale of Ability (WNV; Wechsler & Naglieri, 2006), and the Differential Ability Scales, Second Edition (DAS-II; Elliott, 2007).


Scoring & Reporting

Overview

Scoring & Reporting

  • 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.

View a sample Score Report (for clinician)
View a sample Parent Report
View a WISC-IV / WIAT-III Score Report

Details & Pricing

Products


Wechsler Individual Achievement Test®–Third Edition (WIAT®–III)
QtyCodeNamePrice
015-8984-609WIAT-III Kit with Scoring Assistant (Windows only) - Includes Examiner’s Manual, Technical Manual CD, Stimulus Book, Scoring Workbook, Oral Reading Fluency Book, Word Card, Pseudo Word Card, Audio CD, Scoring Assistant (CD-WIN), Response Booklets (25), Record Forms (25)$625.00
015-8984-730WIAT-III Kit with Scoring Assistant (Windows only) + Soft Case with Luggage Tag$675.00

Administration Materials


WIAT-III Enhanced Record Forms/Response Booklets
QtyCodeNamePrice
0158984846WIAT-III Enhanced Record Forms/Response Booklet Combo - Pkg. of 25$117.00
015898482XWIAT-III Enhanced Record Form - Pkg. of 25$70.00
0158984838WIAT-III Enhanced Response Booklet - Pkg. of 25$60.00

WIAT-III PreK/Kindergarten Record Forms and Response Booklets
QtyCodeNamePrice
0158984773WIAT-III PreK/Kindergarten Record Form and Response Booklet Combo$60.00
0158984749WIAT-III PreK/K Record Form - Pkg. of 25$35.00
0158984765WIAT-III PreK/K Response Booklet - Pkg. of 25$30.00

WIAT-III Examiner’s Manual
QtyCodeNamePrice
0158984617WIAT-III Examiner’s Manual$77.50

WIAT-III Stimulus Book
QtyCodeNamePrice
0158984633WIAT-III Stimulus Book$250.00

WIAT-III Technical Manual CD
QtyCodeNamePrice
0158984854WIAT-III Technical Manual CD$76.00