Diagnostic procedures depend on which causal theory you believe in.
Those who believe dyslexia is caused by brain dysfunction would diagnose using an evaluation of medical, cognitive, sensory-processing, educational and psychological factors, including:
- Vision, hearing and neurological evaluations
- A psychological assessment
- An evaluation of educational skills
However, if you hold to the inner-ear imbalance theory, as does Dr. Harold Levinson, the diagnostic criteria would be much wider, including:
- Electronystagmography (ENG)pho
- Audiological Testing
- Posturography
- Optokinetic Testing
- Neurological Testing
- Bender Gestalt & GoodEnough Figure Drawings
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