Just a technical note: "spectrum" in autism spectrum disorder doesn't refer to a scale from "mild" to "strong", but refers to a spectrum of symptoms/behaviors.

Just a technical note: "spectrum" in autism spectrum disorder doesn't refer to a scale from "mild" to "strong", but refers to a spectrum of symptoms/behaviors. There is a broad spectrum of symptoms which fall under the autism spectrum. Everyone who has ASD, has a number of these symptoms but two people who both have ASD can easily have none of these symptoms in common.