This quiz is not a diagnostic tool. It doesn't measure objective severity and it's not endorsed by any formal diagnostic procedures.
High verses low function is often done off IQ although some people argue that it describes severity of multifaceted difficulties.
For example, there is no mention of rigidity in your diagram.
This is the current ASD severity rating. It is possible to be below level 1 and still have ASD. I am not sure about the specifics of how this work but it is in the full text. Possibly for those who met criteria by history and don't now.
This is the severity ratings from the DSM 5. Unfortuantely with only 6 categories for the whole ASD spectrum it doesn't differentiate too much where the old AS diagnosis would have been.
Alright, I guess from the DSM V papers level 1 kindof sounds like me