The problem is that IQ is very poor at actually identifying “general intellectual ability,” as “general intellectual ability” is not a linear spectrum but a highly complex and multi-faceted phenomena.
Yeah, it is a single one dimensional number that attempts to represent a multidimensional system. But also you can pretty well predict whether someone is capable of, like, standing trial or something if that single number is particularly low. It does correlate with a real phenomenon, if not perfectly.
The problem is that IQ is very poor at actually identifying “general intellectual ability,” as “general intellectual ability” is not a linear spectrum but a highly complex and multi-faceted phenomena.
Yeah, it is a single one dimensional number that attempts to represent a multidimensional system. But also you can pretty well predict whether someone is capable of, like, standing trial or something if that single number is particularly low. It does correlate with a real phenomenon, if not perfectly.