In the early 1990s, the diagnostic criteria for autism were broadened. Subsequent to that, screening programs were implemented in schools. Here's a hint: If you don't look for something, you will find a lot less of it. If you look harder for something, you will find more of it.1/ https://twitter.com/AQuantumCat1/status/1399982466790793221 …
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Basically, when you take into account changes in diagnostic criteria and other confounders, it turns out that the prevalence of autism hasn't changed in decades. 4/4https://sciencebasedmedicine.org/autism-prevalence-unchanged-in-20-years/ …
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