I took a tedious multi-day test for this sort of thing, among others. I wasn't really able to use the results, as I had by then already figured out which things I was three and a half standard deviations below my general intelligence at. I didn't fit the pattern for autism or anything else.

It would have saved me a lot of anguish if I had taken it when I was thirteen or so, so there's a limit to how much I would indict the knowledge in the field.