Why would any rational individual take an IQ test? IQ cannot be changed and whatever outcome doesn't change your course of action, being the fact that you have to work hard.
Low IQ: Gotta work hard
High IQ: Gotta work hard
From what I can tell, most professions have a rough IQ floor. If you're above the floor, more IQ can always help, but other traits like conscientiousness and agreeableness tend to matter more. But if you're substantially below the floor, there's almost no chance that hard work will help you bridge the gap.
It certainly felt like the kind of test that could be improved with practice. Not as easily as the SAT, sure, but certain patterns seemed to appear, in a way I bet I could prep for.
I haven't tested that hypothesis, but if anyone wants to fund me to take a bunch over the next year... let me know ;)
(Why did I take it in the first place? Curiosity. Maybe also a bit of vanity. "Rationality" seems like a false idol to focus purely on in general, for decisions.)
Regardless of the test, the percentile numbers didn't change.
I've read people claim on and off for years that you can "study" for them and "improve" your scores, but that's not been my experience. Any variations you get might be slight, but you're extremely unlikely to get any statistical difference... unless....
I had a test at age 9 for a specific 'gifted' program starting in our school district. 2 months later, we moved districts, and I was given the exact same test again. I aced it, because I'd asked my parents some of the questions I didn't understand the first time. I 'confessed'(?) to the test giver in the second district that I'd already had these exact same questions 3 months earlier, which they noted. I'd already 'qualified' after the first test, so again, I don't think there was any significantly different outcome (I 'qualified' after the second test in the new district as well).
you cannot pre-emptly put yourself in your place, that’s the best route for depression and depression sucks whether you have a high, normal or low IQ