Wechsler Individual Achievement Test | Fourth Edition: Dyslexia IndexWIAT-4 Dyslexia Index
- WIAT-4 Dyslexia Index is a brief, individually-administered, performance-based screening tool that provides risk assessment, strength of risk, and interpretive information for team and parent/caregiver communication regarding individuals who may be at risk for dyslexia.
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WIAT-4 Dyslexia Index Combination Kit (Digital Plus Print)A103000230966 Qualification Level B
Includes Stimulus Book (Digital), Audio Files (Digital) , Q-global Manual (Digital), Pkg of 25 Record Forms (Print)
WIAT-4 Dyslexia Index Q-global Manual (Digital)A103000193782 Qualification Level B
WIAT-4 Dyslexia Index Manual (Print)A103000193787 Qualification Level B
WIAT-4 Dyslexia Index Record Forms (25)A103000193785 Qualification Level B
WIAT-4 Dyslexia Index Q-global Stimulus Book (Digital)A103000230970 Qualification Level B
- Age range:
- 4-50 (Grades PK-12+)
- Publication date:
- Qualification level:
- Completion time:
- About 5 minutes for PK-3; Less than 20 minutes for 4-12+
- Q-interactive (administration only), Q-global (digital administration components), or paper-and-pencil
- Standard score, percentile rank, confidence interval, descriptive classification, interpretive statement, history and background considerations, graphical profile
- Scoring options:
- Hand scoring
The WIAT-4 Dyslexia Index helps identify risk for dyslexia among students from pre-kindergarten through grade 12, or individuals ages 4 through 50.
Uses & Applications
The WIAT-4 Dyslexia Index may be used:
The WIAT-4 Dyslexia Index was designed to provide theoretically sound, reliable, and clinically sensitive composite scores for identifying risk for dyslexia across much of the age span. In 10 to 20 minutes or less, practitioners can obtain a Dyslexia Index score to screen for dyslexia and identify individuals who may benefit from a comprehensive evaluation or a more intensive intervention approach.
A single score such as the Dyslexia Index is not sufficient to diagnose dyslexia. Rather, a diagnosis of dyslexia is based on a convergence of evidence gathered from multiple sources. However, the Dyslexia Index results may contribute to a more in-depth evaluation using the WIAT-4.
Two Dyslexia Index scores are provided for the WIAT-4:
These Dyslexia Index scores are obtained by administering two or three subtests, respectively, from the WIAT-4.
The WIAT-4 Dyslexia Index: Grades PK–3 includes two subtests:
This composite is available for students in Pre-kindergarten through Grade 3.
This composite is available for students in Grades 4–12 as well as adults up to Age 50.
Standalone report or part of a comprehensive WIAT-4 evaluation report
The following training events are available for WIAT-4 Dyslexia Index Scores.