I had my assessment done at my university, which uses a sliding scale depending on income. Being unemployed at the time, I paid $500 for my test. I think most private practitioners charge between $2,000-3,000, and whether they do it in one session or a few is dependent on the practitioner, or their institution. Mine was done in five separate sessions spanning about two months, but I know someone who had theirs done in one day, and got the results three weeks later, so you won't know what testing will be like until you find the person you want to be tested by. Good luck!
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"Survival is insufficient" - Seven of Nine
Diagnosed with ASD level 1 on the 10th of April, 2014
Rediagnosed with ASD level 2 on the 4th of May, 2019
Thanks to Olympiadis for my fantastic avatar!