Earlier quoted context omitted.
Your best argument is "we've done it for a long time, so it can't be wrong"? Quite the contrary: there is a long history of "objective" tests being shown to be deeply flawed and biased towards certain factors (often cultural and class based), we explicitly know it isn't the case that test scores are purely about some innate intelligence characteristic: there is a reason the rich spend a lot of money to raise their ch…
The notion that the British A levels have “cultural bias” is absurd, given that Asians outperform white British: https://www.ethnicity-facts-figures.service.gov.uk/education... . In the U.S., research shows the SAT is highly predictive of college performance: https://freddiedeboer.substack.com/p/education-week-educatio... (summarizing research).
How will you explain that Asians outperform white British otherwise, knowing that the idea that Asians and white British are genetically different enough to explain this has been scientifically debunked, or that adopted Asians don't show the same pattern as not adopted Asians?
(and, yes, of course SAT is highly predictive of college performance, isn't that the point: people who get better training get better college performance while not being "smarter", just "better trained")