Comment by longhaul

@SubiculumCode - replying as you are a researcher in this field. There is an increase in profound autism globally (I think this is the new naming to differentiate severe autism) which isn’t explained by sensitive instruments or inclusion criteria. You just don’t need them to identify profound autism, it is that obvious. Affected people need caregivers for life also causing severe mental and financial stress. It will only help your research to investigate this increase which perhaps will lead to medical breakthroughs.