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Isn’t the biggest or one of the biggest indicator of SAT scores is how wealthy/well off the test taker is?

Similarly, the IQ test is flawed too. Neither are representative of intelligence or what is required to be a good teacher

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No. SAT is in fact fairly resistant to preparation. Not as much as some other tests, and not as much as the older versions of the SAT, but it's still largely an intelligence test.

Families making $200K+ do 400 points higher than families making $40K or $20K or less. I forget the exact figure. This study is widely available. 400 point difference is so massive it shows it’s not largely an intelligence test nor is it resistant to prep.

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