[wizzwizz4]

That's the only insight IQ scores can give you. But each IQ test tests for something, and IQ being a bunk concept doesn't invalidate that.

Reading comprehension tests test end-to-end ability to process that test and those questions in this circumstance. What comes next? tests test your ability to understand and solve a particular set of puzzles: they're a decent proxy for pattern-recognition skills if you share cultural context with the test author and can handle the administrative overhead of that style of examination. And so on. It's nonsense to give yourself some overall score at the end (though this can make sense for populations), but that doesn't mean the tests are worthless.

[peterfirefly]

> IQ being a bunk concept

It's not.

[iraqmtpizza]

If IQ was a bunk concept then the US military could save tens of billions of dollars a year by admitting people who don't meet the current threshold. Imagine the promotion you'd get for saving tens of billions a year, every year, in perpetuity.