You may need a current diagnosis in order to take the test with accommodations. The following articles have information about educational testing for adults:
Under the public law, IDEA, every public school program must have a Child Find program to evaluate children ages 3 to 5 who appear to be delayed in any area of development prior to entering kinderg
Anxiety Disorders and ADHD are best diagnosed by a psychiatrist. Learning Disabilities are best diagnosed by a psychologist who does psycho-educational testing.