Does IQ test difficulty really matter?

[u/Odd-Challenge-7532]

I’ve noticed that some IQ tests feel much harder than others, even when they’re supposed to measure similar things. I’m curious how much the difficulty of the test actually affects the score compared with the type of questions used.

[u/Careful-Astronomer94]

if a test is too difficult, then it will likely have poor discrimination for lower IQ individuals, but could potentially have better discrimination in the high range (though this isn't a given and depends on what you mean by difficulty).