Structured Dyslexia Assessment

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Version 2.1

Structured Dyslexia Assessment (SDA)® is designed to help school psychologists make difficult determinations as to whether a student’s reading problems may be due to dyslexia. It allows the psychologist to enter percentile scores from academic/achievement tests and the CHC Factors derived from intelligence tests. The latest version of the SDA program includes a new dyslexia chart to aid in the identification of different types of dyslexia. The number of tests in the SDA program has been increased from 36 to 49.  SDA 2.1.0 now includes the WIAT-4 Phonological Processing Composite.

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Operating system compatibility
Windows® 7, 8, 10
Mac® OS Yosemite (10.10) to Catalina (10.15)