The Dyslexia Screener series by Drs John Griffin and Howard Walton provides an indication within a few minutes whether or not the patient exhibits one of the basic types of dyslexia. The test sensitivity is 88% for dyseidesia and 84% for dysphonesia.

The DDT Dyslexia Determination kit provides screening, diagnosis and therapy recommendations. Gives insight to the type of Dyslexia. Set up to test Spanish students with an English speaking administrator.