A low-cost tool accurately distinguishes neurotypical children from children with autism just by watching them copy the dance moves of an on-screen avatar for a minute. It can even tell autism from ADHD, conditions that commonly overlap.

[u/mvea]

https://newatlas.com/adhd-autism/autism-motion-detection-diagnosis/

[u/Im_Balto → u/[deleted]]

but not exactly helpful unless all the other diagnostic criteria doctors use is somehow even less accurate.

Having more diagnostic methods/data allows for better use of Differential diagnosis. A result from this test might not confirm ASD, but instead definitively rule out something else when taken with the results of a different test