March 18, 2023 at 3:14 am #136590
That statisticians at the Williams Institute (part of the UCLA Law School) do have ways of estimating the status of folks that do not declare in surveys. I have seen mention of this, but not being a statistician I don’t know what the technique is.
The numbers that I mentioned came from the 2016 survey. This is the updated 2022 version:
https://williamsinstitute.law.ucla.edu/wp-content/uploads/Trans-Pop-Update-Jun-2022.pdf