Yes. The issue is the accepted belief (among professionals) that "IQ doesn't change through life"... which is nice as a goal to develop a less biased "ideal IQ test", but also a really bad preconception when evaluating actual IQ test results.

There are many preconceptions like that in psychology, they need a periodic kick in the butt from actual data.

[–] Powderhorn@beehaw.org 1 points 1 day ago

I mean, in the past eight years, I've noticed my mental acuity sharply falling off. I'd imagine some hope for the future might turn that around, but I've been burned enough times that the high point of my day is usually hearing from the ex-wife I tried to kill myself because of twice.