Thread: AUTISM
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Old 01-06-2010, 08:47 PM
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EireEngineer EireEngineer is offline
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Join Date: Oct 2009
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Default Re: AUTISM

Do you really need me to explain this to you? Say the actual, absolute rate of something is 1 in 150. However, because it is not well understood the rate at which it is recognized is 1 in 300. The "perceived rate" would be 1 in 300, while the absolute is still 1 in 150. If it suddenly gets recognized better due to improvements in diagnoses, the "perceived rate" may increase to 1 in 200. Does this mean that the rate has increased? No. It is still 1 in 150, but the perception will be that it increased. Is that so hard?
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