Originally Posted by Bostonian
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No test is perfect, but the ACT and SAT are powerful predictors of college performance. As psychology professors Nathan Kuncel and Paul Sackett wrote in The Wall Street Journal in March: “Longitudinal research demonstrates that standardized tests predict not just grades all the way through college but also the level of courses a student is likely to take.”

Standardized tests are especially important in a time of severe grade inflation, especially in more affluent high schools.
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The University of Chicago also says eliminating testing requirements “levels the playing field” for “under-resourced and first-generation students,” who may not have access to test-preparation courses. But contrary to myth, most such courses produce only modest gains. And last year Khan Academy and the College Board unveiled a free course they say boosts SAT scores for students at all income levels. By contrast, low-income students are unlikely to have access to exotic summer internships or other activities that impress admissions offices.
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The Truth About the SAT and ACT
Myths abound about standardized tests, but the research is clear: They provide an invaluable measure of how students are likely to perform in college and beyond
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Agreed. Some may say this was even more accurate for past versions of the tests, before recent changes.