Send assessments and training programs to research participants. Full Diagnostic Assessments Dyslexia can be diagnosed by Chartered Psychologists specialising in adult dyslexia who may also be able to identify frequently co-occurring conditions such as Dyspraxia, Dyscalculia and Attention Deficit Disorder. Symptoms of dyslexia usually become more obvious when children Adult dyslexia test school and begin to focus more on learning how to read and write. Even if they have normal or above-average intelligence, it is more likely that at some points in their lives they have been considered stupid or bad at school. Testing Adult dyslexia test Dyslexia in Adults.