I have been working at Nashua Schools (More than 10 years) Pros Large District so there are more opportunities for teachers to take on projects than smaller districts.
And many people with Autism do suffer from a form of Mental Retardation. For some reason I believe people feel better the more they can separate the two conditions and believe somehow it is better to have Autism non related to mental retardation.
Schizophrenia is a major cause of disability, with active psychosis ranked as the third-most-disabling condition after quadriplegia and dementia and ahead of paraplegia and blindness. Approximately three-fourths of people with schizophrenia have ongoing disability with relapses and 16.7 million people globally are deemed to have moderate or severe disability from the condition.