You should take a look at the PDF that is provided after you take the test. I believe it's only available for half an hour so you better save it to your computer.
In that PDF, there is an explanation for every category.
As far as I know, the aspie quiz is by far the most reliable one on the Internet. There's also the AQ test, which is more general in my opinion.
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Leading a double life and loving it (but exhausted).
Likely ADHD instead of what I've been diagnosed with before.