Does this mean that today's IQ tests have racial bias?
> There’s also a historical association with IQ assessment and eugenics.
Does this mean that today's IQ tests have racial bias?
The big debate in academic psychology is the extent to which factors like SES (and factors downstream of SES, like general health) confound the measurement of some kind of general intelligence. The evidence we have right now pretty clearly points to an effect, so it's down to what the size of that effect is.
Imagine a test to measure the resistance of various materials. Is the test biased because it shows that concrete is stronger than rotten wood? No, it just measures the resistance of different materials. If the measurement error (not the measurement itself) was significantly different for different materials then yes you could say the test is biased.
You are just saying that SES affects intelligence, which is most likely true and immediately prompts the question of what affects SES.
What is the true value in this case? Is it the counterfactual performance a person would have if their SES were not low? Would that be the "right" true value in all applications? Might it not be the case that, in some contexts, the "right" true value is the person's actual current ability level and not some counterfactual of how they would do in other circumstances that were perhaps more just and fair? For example, what if you are trying to give them the learning opportunity best suited to their actual current ability level, not trying to rank people and only give the top-ranked some special status or credential?
