I am actually familiar with some of the research actually, but thank you for your condescendence.
I didn't mean to imply that the SAT or grades are not predictive of future performance, only that lower socio-economic statuses will correlate to lower SAT grades in the first place, ie your (a) proposal in the second source.
From this same source:
> The SAT-grade relationship is not an artifact of common influences of SES on both test scores and grades
To substantiate my initial comment, test scores are highly predictive yes, but as you just linked, SES is highly predictive of test scores (and this is only for people who get to the damn test). This is the tautological part. High incomes make people test well which lead to jobs with high incomes. But since this correlation is not 100% but merely very high, we can pat ourselves on the back and say hey it's accurate!
Articles that defend the accuracy of the system tend to implicitly defend its legitimacy, which I think is a much more important question than "is SAT indicative of future performance" when considering whether the SAT is useful.
I didn't mean to imply that the SAT or grades are not predictive of future performance, only that lower socio-economic statuses will correlate to lower SAT grades in the first place, ie your (a) proposal in the second source.
From this same source:
> The SAT-grade relationship is not an artifact of common influences of SES on both test scores and grades
To substantiate my initial comment, test scores are highly predictive yes, but as you just linked, SES is highly predictive of test scores (and this is only for people who get to the damn test). This is the tautological part. High incomes make people test well which lead to jobs with high incomes. But since this correlation is not 100% but merely very high, we can pat ourselves on the back and say hey it's accurate!
Articles that defend the accuracy of the system tend to implicitly defend its legitimacy, which I think is a much more important question than "is SAT indicative of future performance" when considering whether the SAT is useful.